kopia lustrzana https://github.com/villares/sketch-a-day
190606b_fix
villares
rodzic
bb3f2ecfe5
commit
08e578d96b
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@ -22,11 +22,16 @@ def draw():
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ellipse(pt[0], pt[1], 10, 10)
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def mouseWheel(event):
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def keyPressed():
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global r, d
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delta = 0
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if key == "-":
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delta = -1
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elif key == "=" or key == "+":
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delta = 1
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for i, pt in enumerate(pts):
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if dist(mouseX, mouseY, pt[0], pt[1]) < 10:
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rds[i] += 5 * event.delta
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rds[i] += 5 * delta
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return False
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def mousePressed():
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@ -185,5 +190,5 @@ def b_arc(cx, cy, w, h, start_angle, end_angle, mode):
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endShape()
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# ==== This is required by pyp5js to work
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event_functions = {"mouseWheel": mouseWheel, "mousePressed": mousePressed, "mouseDragged": mouseDragged, "mouseReleased": mouseReleased, }
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event_functions = { "mousePressed": mousePressed, "mouseDragged": mouseDragged, "mouseReleased": mouseReleased, "keyPressed":keyPressed }
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start_p5(setup, draw, event_functions)
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@ -1,4 +1,4 @@
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// Transcrypt'ed from Python, 2019-06-06 23:32:30
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// Transcrypt'ed from Python, 2019-06-09 19:05:09
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var __name__ = 'org.transcrypt.__runtime__';
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export var __envir__ = {};
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__envir__.interpreter_name = 'python';
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Plik diff jest za duży
Load Diff
File diff suppressed because one or more lines are too long
Plik diff jest za duży
Load Diff
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@ -0,0 +1,215 @@
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// Transcrypt'ed from Python, 2019-06-09 19:05:10
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import {AssertionError, AttributeError, BaseException, DeprecationWarning, Exception, IndexError, IterableError, KeyError, NotImplementedError, RuntimeWarning, StopIteration, UserWarning, ValueError, Warning, __JsIterator__, __PyIterator__, __Terminal__, __add__, __and__, __call__, __class__, __envir__, __eq__, __floordiv__, __ge__, __get__, __getcm__, __getitem__, __getslice__, __getsm__, __gt__, __i__, __iadd__, __iand__, __idiv__, __ijsmod__, __ilshift__, __imatmul__, __imod__, __imul__, __in__, __init__, __ior__, __ipow__, __irshift__, __isub__, __ixor__, __jsUsePyNext__, __jsmod__, __k__, __kwargtrans__, __le__, __lshift__, __lt__, __matmul__, __mergefields__, __mergekwargtrans__, __mod__, __mul__, __ne__, __neg__, __nest__, __or__, __pow__, __pragma__, __proxy__, __pyUseJsNext__, __rshift__, __setitem__, __setproperty__, __setslice__, __sort__, __specialattrib__, __sub__, __super__, __t__, __terminal__, __truediv__, __withblock__, __xor__, all, any, assert, bool, bytearray, bytes, callable, chr, deepcopy, delattr, dict, dir, divmod, enumerate, getattr, hasattr, input, isinstance, issubclass, len, list, object, ord, property, py_TypeError, py_iter, py_metatype, py_next, py_reversed, py_typeof, range, repr, setattr, sorted, sum, tuple, zip} from './org.transcrypt.__runtime__.js';
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import {ADD, ALT, ARROW, AUTO, AXES, BACKSPACE, BASELINE, BEVEL, BEZIER, BLEND, BLUR, BOLD, BOLDITALIC, BOTTOM, BURN, CENTER, CHORD, CLAMP, CLOSE, CONTROL, CORNER, CORNERS, CROSS, CURVE, DARKEST, DEGREES, DEG_TO_RAD, DELETE, DIFFERENCE, DILATE, DODGE, DOWN_ARROW, ENTER, ERODE, ESCAPE, EXCLUSION, FILL, GRAY, GRID, HALF_PI, HAND, HARD_LIGHT, HSB, HSL, IMAGE, IMMEDIATE, INVERT, ITALIC, LANDSCAPE, LEFT, LEFT_ARROW, LIGHTEST, LINEAR, LINES, LINE_LOOP, LINE_STRIP, MIRROR, MITER, MOVE, MULTIPLY, NEAREST, NORMAL, OPAQUE, OPEN, OPTION, OVERLAY, P2D, PI, PIE, POINTS, PORTRAIT, POSTERIZE, PROJECT, QUADRATIC, QUADS, QUAD_STRIP, QUARTER_PI, RADIANS, RADIUS, RAD_TO_DEG, REPEAT, REPLACE, RETURN, RGB, RIGHT, RIGHT_ARROW, ROUND, SCREEN, SHIFT, SOFT_LIGHT, SQUARE, STROKE, SUBTRACT, TAB, TAU, TEXT, TEXTURE, THRESHOLD, TOP, TRIANGLES, TRIANGLE_FAN, TRIANGLE_STRIP, TWO_PI, UP_ARROW, WAIT, WEBGL, _CTX_MIDDLE, _DEFAULT_FILL, _DEFAULT_LEADMULT, _DEFAULT_STROKE, _DEFAULT_TEXT_FILL, _P5_INSTANCE, abs, accelerationX, accelerationY, accelerationZ, acos, alpha, ambientLight, ambientMaterial, angleMode, append, applyMatrix, arc, arrayCopy, asin, atan, atan2, background, beginContour, beginShape, bezier, bezierDetail, bezierPoint, bezierTangent, bezierVertex, blend, blendMode, blue, boolean, box, brightness, byte, camera, ceil, char, circle, color, colorMode, concat, cone, constrain, copy, cos, createCamera, createCanvas, createGraphics, createImage, createNumberDict, createShader, createStringDict, createVector, createWriter, cursor, curve, curveDetail, curvePoint, curveTangent, curveTightness, curveVertex, cylinder, day, debugMode, degrees, deviceOrientation, directionalLight, disableFriendlyErrors, displayDensity, displayHeight, displayWidth, dist, ellipse, ellipseMode, ellipsoid, endContour, endShape, exp, fill, filter, float, floor, focused, frameCount, frameRate, fullscreen, getURL, getURLParams, getURLPath, global_p5_injection, green, height, hex, hour, httpDo, httpGet, httpPost, hue, image, imageMode, int, join, key, keyCode, keyIsDown, keyIsPressed, lerp, lerpColor, lightness, lights, line, loadBytes, loadFont, loadImage, loadJSON, loadModel, loadPixels, loadShader, loadStrings, loadTable, loadXML, log, loop, mag, map, match, matchAll, max, millis, min, minute, model, month, mouseButton, mouseIsPressed, mouseX, mouseY, nf, nfc, nfp, nfs, noCanvas, noCursor, noDebugMode, noFill, noLoop, noSmooth, noStroke, noTint, noise, noiseDetail, noiseSeed, norm, normalMaterial, orbitControl, ortho, pAccelerationX, pAccelerationY, pAccelerationZ, pRotationX, pRotationY, pRotationZ, perspective, pixelDensity, pixels, plane, pmouseX, pmouseY, point, pointLight, pow, pre_draw, preload, print, push, pwinMouseX, pwinMouseY, py_clear, py_get, py_pop, py_sort, py_split, quad, quadraticVertex, radians, random, randomGaussian, randomSeed, rect, rectMode, red, redraw, remove, resetMatrix, resetShader, resizeCanvas, reverse, rotate, rotateX, rotateY, rotateZ, rotationX, rotationY, rotationZ, round, saturation, save, saveCanvas, saveFrames, saveJSON, saveStrings, saveTable, scale, second, set, setAttributes, setCamera, setMoveThreshold, setShakeThreshold, shader, shearX, shearY, shininess, shorten, shuffle, sin, smooth, specularMaterial, sphere, splice, splitTokens, sq, sqrt, square, start_p5, str, stroke, strokeCap, strokeJoin, strokeWeight, subset, tan, text, textAlign, textAscent, textDescent, textFont, textLeading, textSize, textStyle, textWidth, texture, textureMode, textureWrap, tint, torus, touches, translate, triangle, trim, turnAxis, unchar, unhex, updatePixels, vertex, width, winMouseX, winMouseY, windowHeight, windowWidth, year} from './pytop5js.js';
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var __name__ = '__main__';
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export var pts = list ([]);
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export var rds = list ([30, 70, 50]);
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export var dragged_pt = -(1);
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export var setup = function () {
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createCanvas (500, 500);
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pts.append (tuple ([250, 150]));
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pts.append (tuple ([250 + 100 * cos (PI / 6.0), 250 + 100 * sin (PI / 6.0)]));
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pts.append (tuple ([250 - 100 * cos (PI / 6.0), 250 + 100 * sin (PI / 6.0)]));
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};
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export var draw = function () {
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background (200);
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fill (255, 100);
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b_poly_arc_augmented (pts, rds);
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fill (0, 0, 100);
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for (var pt of pts) {
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ellipse (pt [0], pt [1], 10, 10);
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}
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};
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export var keyPressed = function () {
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var delta = 0;
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if (key == '-') {
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var delta = -(1);
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}
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else if (key == '=' || key == '+') {
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var delta = 1;
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}
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for (var [i, pt] of enumerate (pts)) {
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if (dist (mouseX, mouseY, pt [0], pt [1]) < 10) {
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rds [i] += 5 * delta;
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}
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}
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return false;
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};
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export var mousePressed = function () {
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for (var [i, pt] of enumerate (pts)) {
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if (dist (mouseX, mouseY, pt [0], pt [1]) < 10) {
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dragged_pt = i;
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break;
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}
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}
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};
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export var mouseDragged = function () {
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if (dragged_pt >= 0) {
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pts [dragged_pt] = tuple ([mouseX, mouseY]);
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}
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};
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export var mouseReleased = function () {
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dragged_pt = -(1);
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};
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export var b_poly_arc_augmented = function (op_list, or_list) {
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var __left0__ = tuple ([list ([]), list ([]), or_list.__getslice__ (0, null, 1)]);
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var p_list = __left0__ [0];
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var r_list = __left0__ [1];
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var r2_list = __left0__ [2];
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for (var [i1, p1] of enumerate (op_list)) {
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var i2 = __mod__ (i1 + 1, len (op_list));
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var __left0__ = tuple ([op_list [i2], r2_list [i2], r2_list [i1]]);
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var p2 = __left0__ [0];
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var r2 = __left0__ [1];
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var r1 = __left0__ [2];
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if (dist (p1 [0], p1 [1], p2 [0], p2 [1]) > 1) {
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p_list.append (p1);
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r_list.append (r1);
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}
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else {
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r2_list [i2] = min (r1, r2);
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}
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}
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for (var [i1, p1] of enumerate (p_list)) {
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var i2 = __mod__ (i1 + 1, len (p_list));
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var __left0__ = tuple ([p_list [i2], r_list [i2], r_list [i1]]);
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var p2 = __left0__ [0];
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var r2 = __left0__ [1];
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var r1 = __left0__ [2];
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var __left0__ = reduce_radius (p1, p2, r1, r2);
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r_list [i1] = __left0__ [0];
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r_list [i2] = __left0__ [1];
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}
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var a_list = list ([]);
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for (var [i1, p1] of enumerate (p_list)) {
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var i2 = __mod__ (i1 + 1, len (p_list));
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var __left0__ = tuple ([p_list [i2], r_list [i2], r_list [i1]]);
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var p2 = __left0__ [0];
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var r2 = __left0__ [1];
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var r1 = __left0__ [2];
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var a = circ_circ_tangent (p1, p2, r1, r2);
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a_list.append (a);
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}
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beginShape ();
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for (var [i1, _] of enumerate (a_list)) {
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var i2 = __mod__ (i1 + 1, len (a_list));
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var __left0__ = tuple ([p_list [i1], p_list [i2], r_list [i1], r_list [i2]]);
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var p1 = __left0__ [0];
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var p2 = __left0__ [1];
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var r1 = __left0__ [2];
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var r2 = __left0__ [3];
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var __left0__ = a_list [i1];
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var a1 = __left0__ [0];
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var p11 = __left0__ [1];
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var p12 = __left0__ [2];
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var __left0__ = a_list [i2];
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var a2 = __left0__ [0];
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var p21 = __left0__ [1];
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var p22 = __left0__ [2];
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if (a1 && a2) {
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var start = (a1 < a2 ? a1 : a1 - TWO_PI);
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if (r2 < 0) {
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var a2 = a2 - TWO_PI;
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}
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b_arc (p2 [0], p2 [1], r2 * 2, r2 * 2, start, a2, 2);
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}
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else {
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if (a1) {
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vertex (p12 [0], p12 [1]);
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}
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if (a2) {
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vertex (p21 [0], p21 [1]);
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}
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}
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}
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endShape (CLOSE);
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};
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export var reduce_radius = function (p1, p2, r1, r2) {
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var d = dist (p1 [0], p1 [1], p2 [0], p2 [1]);
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var ri = abs (r1 - r2);
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if (d - ri < 0) {
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if (r1 > r2) {
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var r1 = map (d, ri + 1, 0, r1, r2);
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}
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else {
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var r2 = map (d, ri + 1, 0, r2, r1);
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}
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}
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return tuple ([r1, r2]);
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};
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export var circ_circ_tangent = function (p1, p2, r1, r2) {
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var d = dist (p1 [0], p1 [1], p2 [0], p2 [1]);
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var ri = r1 - r2;
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var line_angle = atan2 (p1 [0] - p2 [0], p2 [1] - p1 [1]);
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if (d - abs (ri) > 0) {
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var theta = asin (ri / float (d));
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var x1 = -(cos (line_angle + theta)) * r1;
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var y1 = -(sin (line_angle + theta)) * r1;
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var x2 = -(cos (line_angle + theta)) * r2;
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var y2 = -(sin (line_angle + theta)) * r2;
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return tuple ([line_angle + theta, tuple ([p1 [0] - x1, p1 [1] - y1]), tuple ([p2 [0] - x2, p2 [1] - y2])]);
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}
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else {
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return tuple ([null, tuple ([p1 [0], p1 [1]]), tuple ([p2 [0], p2 [1]])]);
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}
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};
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export var b_arc = function (cx, cy, w, h, start_angle, end_angle, mode) {
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var theta = end_angle - start_angle;
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if (mode != 1 || abs (theta) < HALF_PI) {
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var x0 = cos (theta / 2.0);
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var y0 = sin (theta / 2.0);
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var x3 = x0;
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var y3 = 0 - y0;
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var x1 = (4.0 - x0) / 3.0;
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if (y0 != 0) {
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var y1 = ((1.0 - x0) * (3.0 - x0)) / (3.0 * y0);
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}
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else {
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var y1 = 0;
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}
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var x2 = x1;
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var y2 = 0 - y1;
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var bezAng = start_angle + theta / 2.0;
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var cBezAng = cos (bezAng);
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var sBezAng = sin (bezAng);
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var rx0 = cBezAng * x0 - sBezAng * y0;
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var ry0 = sBezAng * x0 + cBezAng * y0;
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var rx1 = cBezAng * x1 - sBezAng * y1;
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var ry1 = sBezAng * x1 + cBezAng * y1;
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var rx2 = cBezAng * x2 - sBezAng * y2;
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var ry2 = sBezAng * x2 + cBezAng * y2;
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var rx3 = cBezAng * x3 - sBezAng * y3;
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var ry3 = sBezAng * x3 + cBezAng * y3;
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var __left0__ = tuple ([w / 2.0, h / 2.0]);
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var rx = __left0__ [0];
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var ry = __left0__ [1];
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var px0 = cx + rx * rx0;
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var py0 = cy + ry * ry0;
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var px1 = cx + rx * rx1;
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var py1 = cy + ry * ry1;
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var px2 = cx + rx * rx2;
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var py2 = cy + ry * ry2;
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var px3 = cx + rx * rx3;
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var py3 = cy + ry * ry3;
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}
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if (mode == 0) {
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beginShape ();
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}
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if (mode != 1) {
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vertex (px3, py3);
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}
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if (abs (theta) < HALF_PI) {
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bezierVertex (px2, py2, px1, py1, px0, py0);
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}
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else {
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b_arc (cx, cy, w, h, start_angle, end_angle - theta / 2.0, __kwargtrans__ ({mode: 1}));
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b_arc (cx, cy, w, h, start_angle + theta / 2.0, end_angle, __kwargtrans__ ({mode: 1}));
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}
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if (mode == 0) {
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endShape ();
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}
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};
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export var event_functions = dict ({'mousePressed': mousePressed, 'mouseDragged': mouseDragged, 'mouseReleased': mouseReleased, 'keyPressed': keyPressed});
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start_p5 (setup, draw, event_functions);
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//# sourceMappingURL=sketch_190606b.map
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@ -0,0 +1,8 @@
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{
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"version": 3,
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"file": "sketch_190606b.js",
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"sources": [
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"sketch_190606b.py"
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],
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"mappings": "AAAA;AAAA;AAAA;AAAA;AAEA;AACA;AACA;AAEA;AACA;AACA;AAGA;AAEA;AAAA;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AAAA;AAAA;AAGA;AAEA;AACA;AACA;AAAA;AACA;AACA;AAAA;AACA;AACA;AAAA;AAAA;AAAA;AAEA;AAAA;AAEA;AAEA;AACA;AACA;AAAA;AAAA;AAAA;AAAA;AAGA;AACA;AACA;AAAA;AAAA;AAEA;AAEA;AAAA;AAEA;AAIA;AAAA;AAAA;AAAA;AACA;AACA;AACA;AAAA;AAAA;AAAA;AACA;AACA;AACA;AAAA;AACA;AACA;AAAA;AAAA;AAEA;AACA;AACA;AAAA;AAAA;AAAA;AACA;AAAA;AAAA;AAAA;AAEA;AACA;AACA;AACA;AAAA;AAAA;AAAA;AACA;AACA;AAAA;AAEA;AACA;AACA;AACA;AAAA;AAAA;AAAA;AAAA;AACA;AAAA;AAAA;AAAA;AACA;AAAA;AAAA;AAAA;AACA;AACA;AACA;AACA;AAAA;AACA;AAAA;AACA;AAIA;AACA;AAAA;AACA;AACA;AAAA;AAAA;AAAA;AACA;AAAA;AAEA;AACA;AACA;AACA;AACA;AACA;AAAA;AACA;AACA;AAAA;AAAA;AACA;AAAA;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AAAA;AAGA;AACA;AAAA;AAAA;AAIA;AASA;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AAAA;AACA;AACA;AAAA;AACA;AACA;AAIA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AAEA;AAAA;AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AAAA;AAMA;AACA;AAAA;AACA;AACA;AAAA;AACA;AACA;AAAA;AACA;AAEA;AACA;AAAA;AACA;AACA;AAAA;AAAA;AAGA;AACA;AAjMA"
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}
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Plik binarny nie jest wyświetlany.
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@ -0,0 +1,194 @@
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from pytop5js import *
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pts = []
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rds = [30, 70, 50]
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dragged_pt = -1
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def setup():
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createCanvas(500, 500)
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pts.append((250, 150))
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pts.append((250 + 100 * cos(PI / 6.0),
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250 + 100 * sin(PI / 6.0)))
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pts.append((250 - 100 * cos(PI / 6.0),
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250 + 100 * sin(PI / 6.0)))
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def draw():
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background(200)
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fill(255, 100)
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b_poly_arc_augmented(pts, rds)
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fill(0, 0, 100)
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for pt in pts:
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ellipse(pt[0], pt[1], 10, 10)
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def keyPressed():
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global r, d
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delta = 0
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if key == "-":
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delta = -1
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elif key == "=" or key == "+":
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delta = 1
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for i, pt in enumerate(pts):
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if dist(mouseX, mouseY, pt[0], pt[1]) < 10:
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rds[i] += 5 * delta
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return False
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def mousePressed():
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global dragged_pt
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for i, pt in enumerate(pts):
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if dist(mouseX, mouseY, pt[0], pt[1]) < 10:
|
||||
dragged_pt = i
|
||||
break
|
||||
|
||||
def mouseDragged():
|
||||
if dragged_pt >= 0:
|
||||
pts[dragged_pt] = mouseX, mouseY
|
||||
|
||||
def mouseReleased():
|
||||
global dragged_pt
|
||||
dragged_pt = -1
|
||||
|
||||
def b_poly_arc_augmented(op_list, or_list):
|
||||
assert len(op_list) == len(or_list), \
|
||||
"Number of points and radii not the same"
|
||||
# remove overlapping adjacent points
|
||||
p_list, r_list, r2_list = [], [], or_list[:]
|
||||
for i1, p1 in enumerate(op_list):
|
||||
i2 = (i1 + 1) % len(op_list)
|
||||
p2, r2, r1 = op_list[i2], r2_list[i2], r2_list[i1]
|
||||
if dist(p1[0], p1[1], p2[0], p2[1]) > 1: # or p1 != p2:
|
||||
p_list.append(p1)
|
||||
r_list.append(r1)
|
||||
else:
|
||||
r2_list[i2] = min(r1, r2)
|
||||
# reduce radius that won't fit
|
||||
for i1, p1 in enumerate(p_list):
|
||||
i2 = (i1 + 1) % len(p_list)
|
||||
p2, r2, r1 = p_list[i2], r_list[i2], r_list[i1]
|
||||
r_list[i1], r_list[i2] = reduce_radius(p1, p2, r1, r2)
|
||||
# calculate the tangents
|
||||
a_list = []
|
||||
for i1, p1 in enumerate(p_list):
|
||||
i2 = (i1 + 1) % len(p_list)
|
||||
p2, r2, r1 = p_list[i2], r_list[i2], r_list[i1]
|
||||
a = circ_circ_tangent(p1, p2, r1, r2)
|
||||
a_list.append(a)
|
||||
# draw
|
||||
beginShape()
|
||||
for i1, _ in enumerate(a_list):
|
||||
i2 = (i1 + 1) % len(a_list)
|
||||
p1, p2, r1, r2 = p_list[i1], p_list[i2], r_list[i1], r_list[i2]
|
||||
a1, p11, p12 = a_list[i1]
|
||||
a2, p21, p22 = a_list[i2]
|
||||
if a1 and a2:
|
||||
start = a1 if a1 < a2 else a1 - TWO_PI
|
||||
if r2 < 0:
|
||||
a2 = a2 - TWO_PI
|
||||
b_arc(p2[0], p2[1], r2 * 2, r2 * 2, start, a2, 2)
|
||||
else:
|
||||
# when the the segment is smaller than the diference between
|
||||
# radius, circ_circ_tangent won't renturn the angle
|
||||
# ellipse(p2[0], p2[1], r2 * 2, r2 * 2) # debug
|
||||
if a1:
|
||||
vertex(p12[0], p12[1])
|
||||
if a2:
|
||||
vertex(p21[0], p21[1])
|
||||
endShape(CLOSE)
|
||||
|
||||
def reduce_radius(p1, p2, r1, r2):
|
||||
d = dist(p1[0], p1[1], p2[0], p2[1])
|
||||
ri = abs(r1 - r2)
|
||||
if d - ri < 0:
|
||||
if r1 > r2:
|
||||
r1 = map(d, ri + 1, 0, r1, r2)
|
||||
else:
|
||||
r2 = map(d, ri + 1, 0, r2, r1)
|
||||
return(r1, r2)
|
||||
|
||||
def circ_circ_tangent(p1, p2, r1, r2):
|
||||
d = dist(p1[0], p1[1], p2[0], p2[1])
|
||||
ri = r1 - r2
|
||||
line_angle = atan2(p1[0] - p2[0], p2[1] - p1[1])
|
||||
if d - abs(ri) > 0:
|
||||
theta = asin(ri / float(d))
|
||||
x1 = -cos(line_angle + theta) * r1
|
||||
y1 = -sin(line_angle + theta) * r1
|
||||
x2 = -cos(line_angle + theta) * r2
|
||||
y2 = -sin(line_angle + theta) * r2
|
||||
return (line_angle + theta,
|
||||
(p1[0] - x1, p1[1] - y1),
|
||||
(p2[0] - x2, p2[1] - y2))
|
||||
else:
|
||||
return (None,
|
||||
(p1[0], p1[1]),
|
||||
(p2[0], p2[1]))
|
||||
|
||||
def b_arc(cx, cy, w, h, start_angle, end_angle, mode):
|
||||
"""
|
||||
A bezier approximation of an arc
|
||||
using the same signature as the original Processing arc()
|
||||
mode: 0 "normal" arc, using beginShape() and endShape()
|
||||
1 "middle" used in recursive call of smaller arcs
|
||||
2 "naked" like normal, but without beginShape() and endShape()
|
||||
for use inside a larger PShape
|
||||
"""
|
||||
theta = end_angle - start_angle
|
||||
# Compute raw Bezier coordinates.
|
||||
if mode != 1 or abs(theta) < HALF_PI:
|
||||
x0 = cos(theta / 2.0)
|
||||
y0 = sin(theta / 2.0)
|
||||
x3 = x0
|
||||
y3 = 0 - y0
|
||||
x1 = (4.0 - x0) / 3.0
|
||||
if y0 != 0:
|
||||
y1 = ((1.0 - x0) * (3.0 - x0)) / (3.0 * y0) # y0 != 0...
|
||||
else:
|
||||
y1 = 0
|
||||
x2 = x1
|
||||
y2 = 0 - y1
|
||||
# Compute rotationally-offset Bezier coordinates, using:
|
||||
# x' = cos(angle) * x - sin(angle) * y
|
||||
# y' = sin(angle) * x + cos(angle) * y
|
||||
bezAng = start_angle + theta / 2.0
|
||||
cBezAng = cos(bezAng)
|
||||
sBezAng = sin(bezAng)
|
||||
rx0 = cBezAng * x0 - sBezAng * y0
|
||||
ry0 = sBezAng * x0 + cBezAng * y0
|
||||
rx1 = cBezAng * x1 - sBezAng * y1
|
||||
ry1 = sBezAng * x1 + cBezAng * y1
|
||||
rx2 = cBezAng * x2 - sBezAng * y2
|
||||
ry2 = sBezAng * x2 + cBezAng * y2
|
||||
rx3 = cBezAng * x3 - sBezAng * y3
|
||||
ry3 = sBezAng * x3 + cBezAng * y3
|
||||
# Compute scaled and translated Bezier coordinates.
|
||||
rx, ry = w / 2.0, h / 2.0
|
||||
px0 = cx + rx * rx0
|
||||
py0 = cy + ry * ry0
|
||||
px1 = cx + rx * rx1
|
||||
py1 = cy + ry * ry1
|
||||
px2 = cx + rx * rx2
|
||||
py2 = cy + ry * ry2
|
||||
px3 = cx + rx * rx3
|
||||
py3 = cy + ry * ry3
|
||||
# Debug points... comment this out!
|
||||
# stroke(0)
|
||||
# ellipse(px3, py3, 15, 15)
|
||||
# ellipse(px0, py0, 5, 5)
|
||||
# Drawing
|
||||
if mode == 0: # 'normal' arc (not 'middle' nor 'naked')
|
||||
beginShape()
|
||||
if mode != 1: # if not 'middle'
|
||||
vertex(px3, py3)
|
||||
if abs(theta) < HALF_PI:
|
||||
bezierVertex(px2, py2, px1, py1, px0, py0)
|
||||
else:
|
||||
# to avoid distortion, break into 2 smaller arcs
|
||||
b_arc(cx, cy, w, h, start_angle, end_angle - theta / 2.0, mode=1)
|
||||
b_arc(cx, cy, w, h, start_angle + theta / 2.0, end_angle, mode=1)
|
||||
if mode == 0: # end of a 'normal' arc
|
||||
endShape()
|
||||
|
||||
# ==== This is required by pyp5js to work
|
||||
event_functions = { "mousePressed": mousePressed, "mouseDragged": mouseDragged, "mouseReleased": mouseReleased, "keyPressed":keyPressed }
|
||||
start_p5(setup, draw, event_functions)
|
||||
Ładowanie…
Reference in New Issue