Add script to render gerbv test files

examples/gerbv_test_files/include-file-1.gbx

@@ -0,0 +1,7 @@
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+

examples/gerbv_test_files/test-aperture-circle-1.gbx

@@ -0,0 +1,38 @@
+G04 Test drawing with circular apertures*
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+G04 Note: aperture 11 has a round hole in it, but this shouldn't ever show when*
+G04  drawing with it (only should show in flashes)*
+%ADD11C,0.075X0.050*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+G04 Recenter to 0,0
+G01X0Y0D02*
+G04 Draw a line segment*
+X00100Y0D01*
+G04 Turn off for a segment*
+X00200Y0D02*
+G04 Draw another line at angle*
+G54D11*
+X00300Y00100D01*
+G04 Turn off for a segment*
+X0Y00100D02*
+G54D10*
+G04 Turn on circular interpolation*
+G75*
+G03X0Y00300I0J00100D01*
+
+G04 Turn off for a segment*
+X00500Y00D02*
+G04 Draw a larger radius arc*
+G03X00350Y00150I-00250J-00050D01*
+
+G04 Turn off for a segment*
+X00250Y00200D02*
+G04 Draw a larger clockwise radius arc*
+G02X00350Y00350I00250J-00050D01*
+
+M02*

examples/gerbv_test_files/test-aperture-circle-flash-1.gbx

@@ -0,0 +1,27 @@
+G04 Test flashing of circular apertures*
+G04 Four groups of circular apertures are arranged in a square*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+%ADD11C,0.050X0.025*%
+%ADD12C,0.050X0.025X0.030*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+X0Y0D03*
+
+G04 Round hole, centered at 0.1,0 *
+G54D11*
+X00100Y0D03*
+
+G04 Square hole, centered at 0,0.1 *
+G54D12*
+X0Y00100D03*
+
+G04 Two, with round holes, slightly overlapping, centered at 0.1,0.1 *
+G54D11*
+X00100Y00090D03*
+X00100Y00110D03*
+
+M02*

examples/gerbv_test_files/test-aperture-obround-1.gbx

@@ -0,0 +1,38 @@
+G04 Test drawing with rectangular apertures*
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10O,0.050X0.025*%
+G04 Note: aperture 11 has a round hole in it, but this shouldn't ever show when*
+G04  drawing with it (only should show in flashes)*
+%ADD11O,0.075X0.050X0.025*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+G04 Recenter to 0,0
+G01X0Y0D02*
+G04 Draw a line segment*
+X00100Y0D01*
+G04 Turn off for a segment*
+X00200Y0D02*
+G04 Draw another line at angle*
+G54D11*
+X00300Y00100D01*
+G04 Turn off for a segment*
+X0Y00100D02*
+G54D10*
+G04 Turn on circular interpolation*
+G75*
+G03X0Y00300I0J00100D01*
+
+G04 Turn off for a segment*
+X00500Y00D02*
+G04 Draw a larger radius arc*
+G03X00350Y00150I-00250J-00050D01*
+
+G04 Turn off for a segment*
+X00250Y00200D02*
+G04 Draw a larger clockwise radius arc*
+G02X00350Y00350I00250J-00050D01*
+
+M02*

examples/gerbv_test_files/test-aperture-obround-flash-1.gbx

@@ -0,0 +1,27 @@
+G04 Test flashing of obround apertures*
+G04 Four groups of obround apertures are arranged in a square*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10O,0.050X0.080*%
+%ADD11O,0.080X0.050X0.025*%
+%ADD12O,0.050X0.025X0.025X0.0150*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+X0Y0D03*
+
+G04 Round hole, centered at 0.1,0 *
+G54D11*
+X00100Y0D03*
+
+G04 Square hole, centered at 0,0.1 *
+G54D12*
+X0Y00100D03*
+
+G04 Two, with round holes, slightly overlapping, centered at 0.1,0.1 *
+G54D11*
+X00100Y00090D03*
+X00100Y00110D03*
+
+M02*

examples/gerbv_test_files/test-aperture-polygon-1.gbx

@@ -0,0 +1,38 @@
+G04 Test drawing with polygon apertures*
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10O,0.050X0.025*%
+G04 Note: aperture 11 has a round hole in it, but this shouldn't ever show when*
+G04  drawing with it (only should show in flashes)*
+%ADD11O,0.075X0.050X0.025*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+G04 Recenter to 0,0
+G01X0Y0D02*
+G04 Draw a line segment*
+X00100Y0D01*
+G04 Turn off for a segment*
+X00200Y0D02*
+G04 Draw another line at angle*
+G54D11*
+X00300Y00100D01*
+G04 Turn off for a segment*
+X0Y00100D02*
+G54D10*
+G04 Turn on circular interpolation*
+G75*
+G03X0Y00300I0J00100D01*
+
+G04 Turn off for a segment*
+X00500Y00D02*
+G04 Draw a larger radius arc*
+G03X00350Y00150I-00250J-00050D01*
+
+G04 Turn off for a segment*
+X00250Y00200D02*
+G04 Draw a larger clockwise radius arc*
+G02X00350Y00350I00250J-00050D01*
+
+M02*

examples/gerbv_test_files/test-aperture-polygon-flash-1.gbx

@@ -0,0 +1,27 @@
+G04 Test flashing of polygon apertures*
+G04 Four groups of polygon apertures are arranged in a square*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10P,0.050X3*%
+%ADD11P,0.050X6X-45X0.035*%
+%ADD12P,0.040X10X25X0.025X0.025X0.0150*%
+
+G04 Triangle, centered at 0,0 *
+G54D10*
+X0Y0D03*
+
+G04 Hexagon with round hole rotate 45 degreed ccwise, centered at 0.1,0 *
+G54D11*
+X00100Y0D03*
+
+G04 10-sided with square hole rotated 25 degrees, centered at 0,0.1 *
+G54D12*
+X0Y00100D03*
+
+G04 Two, with round holes, slightly overlapping, centered at 0.1,0.1 *
+G54D11*
+X00100Y00090D03*
+X00100Y00110D03*
+
+M02*

examples/gerbv_test_files/test-aperture-rectangle-1.gbx

@@ -0,0 +1,38 @@
+G04 Test drawing with rectangular apertures*
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10R,0.050X0.025*%
+G04 Note: aperture 11 has a round hole in it, but this shouldn't ever show when*
+G04  drawing with it (only should show in flashes)*
+%ADD11R,0.075X0.050X0.025*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+G04 Recenter to 0,0
+G01X0Y0D02*
+G04 Draw a line segment*
+X00100Y0D01*
+G04 Turn off for a segment*
+X00200Y0D02*
+G04 Draw another line at angle*
+G54D11*
+X00300Y00100D01*
+G04 Turn off for a segment*
+X0Y00100D02*
+G54D10*
+G04 Turn on circular interpolation*
+G75*
+G03X0Y00300I0J00100D01*
+
+G04 Turn off for a segment*
+X00500Y00D02*
+G04 Draw a larger radius arc*
+G03X00350Y00150I-00250J-00050D01*
+
+G04 Turn off for a segment*
+X00250Y00200D02*
+G04 Draw a larger clockwise radius arc*
+G02X00350Y00350I00250J-00050D01*
+
+M02*

examples/gerbv_test_files/test-aperture-rectangle-flash-1.gbx

@@ -0,0 +1,27 @@
+G04 Test flashing of rectangular apertures*
+G04 Four groups of rectangular apertures are arranged in a square*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10R,0.050X0.080*%
+%ADD11R,0.080X0.050X0.025*%
+%ADD12R,0.050X0.025X0.025X0.0150*%
+
+G04 No hole, centered at 0,0 *
+G54D10*
+X0Y0D03*
+
+G04 Round hole, centered at 0.1,0 *
+G54D11*
+X00100Y0D03*
+
+G04 Square hole, centered at 0,0.1 *
+G54D12*
+X0Y00100D03*
+
+G04 Two, with round holes, slightly overlapping, centered at 0.1,0.1 *
+G54D11*
+X00100Y00090D03*
+X00100Y00110D03*
+
+M02*

examples/gerbv_test_files/test-circular-interpolation-1.gbx

@@ -0,0 +1,35 @@
+G04 Test circular interpolation*
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+G54D10*
+
+G04 Recenter to 0,0*
+G01X0Y0D02*
+
+G04 Turn on multi-quadrant mode*
+G75*
+G03X0Y00200I0J00100D01*
+
+G04 Switch to quadrant mode, draw ccwise*
+G74*
+G01X00400Y0D02*
+G03X00470Y00080I0J00100D01*
+
+G04 Draw things clockwise on the top two objects*
+
+G04 Turn on multi-quadrant mode*
+G75*
+G01X00100Y00300D02*
+G02X00100Y00500I0J00100D01*
+
+G04 Switch to quadrant mode, draw clockwise*
+G04 Note: since this is single quadrant mode, I and J must be*
+G04  positive, and the parser should automatically negate the J value*
+G04  to make the curve travel in the clockwise direction*
+G74*
+G01X00400Y00300D02*
+G02X00500Y00300I00150J00300D01*
+
+M02*

examples/gerbv_test_files/test-drill-leading-zero-1.exc

@@ -0,0 +1,8 @@
+M48
+INCH,LZ
+T13C0.05
+%
+T13
+X-001000Y030000
+X00000Y03000
+X001Y03
M30

examples/gerbv_test_files/test-drill-repeat-1.exc

@@ -0,0 +1,19 @@
+M48
+INCH,TZ
+T01C0.050
+%
+T01
+X0000Y0000
+X10000Y10000
+R5X1000
+X20000Y10000
+R5Y1000
+X30000Y10000
+R5X1000Y1500
+X10000Y00000
+R5X-1000
+X20000Y00000
+R5Y-1000
+X30000Y00000
+R5X-1000Y-1500
+M30

examples/gerbv_test_files/test-drill-trailing-zero-1.exc

@@ -0,0 +1,8 @@
+M48
+INCH,TZ
+T13C0.05
+%
+T13
+X-001000Y030000
+X0Y030000
+X01000Y30000
M30

examples/gerbv_test_files/test-image-justify-1.gbx

@@ -0,0 +1,19 @@
+G04 Test image justify 1*
+G04 Crosshairs should be justified to the X axis *
+G04   and 0.5 inches offset from Y axis *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IJB.5*%
+%ADD10C,0.050*%
+
+G04 Crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-image-justify-2.gbx

@@ -0,0 +1,19 @@
+G04 Test image justify 2*
+G04 Crosshairs should be centered in X and Y (platen size *
+G04    is assumed to be 2x the overall size of the image) *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IJACBC*%
+%ADD10C,0.050*%
+
+G04 Crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-image-offset-1.gbx

@@ -0,0 +1,18 @@
+G04 Test image polarity *
+G04 Crosshairs should be centered on 0,0 in final rendering*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IOA-2.0B-1.0*%
+%ADD10C,0.050*%
+
+G04 Crosshairs to be on 0,0 *
+X1000Y1000D02*
+G54D10*
+X3000Y1000D01*
+
+X2000Y0D02*
+G54D10*
+X2000Y2000D01*
+
+M02*

examples/gerbv_test_files/test-image-offset-2.gbx

@@ -0,0 +1,19 @@
+G04 Test image offset uses current units *
+G04 Crosshairs should be centered on 0,0 in final rendering*
+G04 Handcoded by Julian Lamb *
+%MOMM*%
+%FSLAX23Y23*%
+%IOB-25.4*%
+%MOIN*%
+%ADD10C,0.050*%
+
+G04 Crosshairs to be on 0,0 *
+X-1000Y1000D02*
+G54D10*
+X1000Y1000D01*
+
+X0Y0D02*
+G54D10*
+X0Y2000D01*
+
+M02*

examples/gerbv_test_files/test-image-polarity-1.gbx

@@ -0,0 +1,17 @@
+G04 Test image polarity *
+G04 Crosshairs should be cut out of a positive background*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IPNEG*%
+%ADD10C,0.050*%
+
+G04 Draw crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-image-rotation-1.gbx

@@ -0,0 +1,21 @@
+G04 Test image rotation *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IR270*%
+%ADD10C,0.050*%
+
+G04 Quarter star *
+X1000Y0D02*
+G54D10*
+X2000Y0D01*
+
+X1000Y0D02*
+G54D10*
+X2000Y1000D01*
+
+X1000Y0D02*
+G54D10*
+X1000Y1000D01*
+
+M02*

examples/gerbv_test_files/test-include-file-1.gbx

@@ -0,0 +1,11 @@
+G04 Test include file 1 *
+G04 Crosshairs should be drawn at 0,0 in final rendering*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%IOA-2.0B-1.0*%
+%ADD10C,0.050*%
+
+G04 Crosshairs to be on 0,0 *
+%IFinclude-file-1.gbx*%
+M02*

examples/gerbv_test_files/test-layer-axis-select-1.gbx

@@ -0,0 +1,15 @@
+G04 Test layer axis select *
+G04 Line is drawn along A axis, then axis select switches it and renders *
+G04   line along y axis *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ASAYBX*%
+%ADD10C,0.050*%
+
+G04 Draw line *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+
+M02*

examples/gerbv_test_files/test-layer-knockout-1.gbx

@@ -0,0 +1,28 @@
+G04 Test layer knockout 1*
+G04 A cleared 3x3 square should surround the crosshairs *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+
+G04 Create a large dark area *
+G36*
+X-2000Y-2000D02*
+X2000Y-2000D01*
+X2000Y2000D01*
+X-2000Y2000D01*
+X-2000Y-2000D01*
+G37*
+
+G04 Create the knockout region *
+%KOCX-1.5Y-1.5I3J3*%
+
+G04 Draw crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-layer-knockout-2.gbx

@@ -0,0 +1,28 @@
+G04 Test layer knockout 2*
+G04 A cleared 0.5 inch border should surround the crosshairs *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+
+G04 Create a large dark area *
+G36*
+X-2000Y-2000D02*
+X2000Y-2000D01*
+X2000Y2000D01*
+X-2000Y2000D01*
+X-2000Y-2000D01*
+G37*
+
+G04 Create the knockout region *
+%KOCK0.5*%
+
+G04 Draw crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-layer-mirror-image-1.gbx

@@ -0,0 +1,23 @@
+G04 Test layer mirror image 1 *
+G04 Quarter star is drawn pointing towards +X, +Y. Mirror
+G04   flips around the Y axis and the star should point towards -X, -Y *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%MIA1B1*%
+%ADD10C,0.050*%
+
+G04 Draw quarter star *
+X0Y0D02*
+G54D10*
+X1000Y0D01*
+
+X0Y0D02*
+G54D10*
+X1000Y1000D01*
+
+X0Y0D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-layer-mode-1.gbx

@@ -0,0 +1,68 @@
+G04 Test handling of unit changes within a RS274X file *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+G04 Aperture 10 should be in Inches *
+%ADD10C,0.050*%
+%MOMM*%
+G04 Aperture 11 should be in MMs *
+%ADD11C,1.250*%
+G04 Aperture 12 should be in MMs *
+%AMTHERMAL*
+7,0,0,25.4,12.7,2.54,0*%
+%MOIN*%
+G04 Aperture 13 is in inches *
+%AMTHERMALTWO*
+7,0,0,1,0.5,0.1,0*%
+%MOMM*%
+%ADD12THERMAL*%
+%MOIN*%
+%ADD13THERMALTWO*%
+
+%MOIN*%
+G04 Box 1, using aperture 10*
+X0Y0D02*
+G54D10*
+X0Y0D01*
+X1000D01*
+Y1000D01*
+X0D01*
+Y0D01*
+
+G04 Box 2, using aperture 11*
+X2000Y0D02*
+G54D11*
+X2000Y0D01*
+X3000D01*
+Y1000D01*
+X2000D01*
+Y0D01*
+
+%MOMM*%
+G04 Box 3, using aperture 10*
+X100000Y0D02*
+G54D10*
+X100000Y0D01*
+X125000D01*
+Y25000D01*
+X100000D01*
+Y0D01*
+
+G04 Draw Thermal in box 1*
+G54D12*
+Y12000X12700D03*
+
+G04 Draw Thermal in box 2*
+G04 ..switch to inches for coordinates*
+G70*
+Y500X2500D02*
+G54D12*
+Y500X2500D03*
+
+G04 ..switch to mms for coordinates*
+G71*
+G04 Draw Thermal in box 3*
+G54D13*
+Y12000X112000D03*
+
+M02*

examples/gerbv_test_files/test-layer-offset-1.gbx

@@ -0,0 +1,18 @@
+G04 Test layer offset 1 *
+G04 Crosshairs should be centered on 0,0*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%OFA-2.0B-1.0*%
+%ADD10C,0.050*%
+
+G04 Crosshairs to be on 0,0 *
+X1000Y1000D02*
+G54D10*
+X3000Y1000D01*
+
+X2000Y0D02*
+G54D10*
+X2000Y2000D01*
+
+M02*

examples/gerbv_test_files/test-layer-rotation-1.gbx

@@ -0,0 +1,23 @@
+G04 Test layer rotation 1 *
+G04 Quarter star should be rotated 45 degrees counterclockwise, pointing*
+G04   the center line straight up *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%RO45*%
+%ADD10C,0.025*%
+
+G04 Quarter star *
+X1000Y0D02*
+G54D10*
+X2000Y0D01*
+
+X1000Y0D02*
+G54D10*
+X2000Y1000D01*
+
+X1000Y0D02*
+G54D10*
+X1000Y1000D01*
+
+M02*

examples/gerbv_test_files/test-layer-scale-factor-1.gbx

@@ -0,0 +1,17 @@
+G04 Test layer scale factor 1 *
+G04 Crosshairs should be centered on 0,0 and 2 inches wide and 1 inch tall*
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%SFA2B1*%
+%ADD10C,0.025*%
+
+G04 Crosshairs to be on 0,0 *
+X-500Y0D02*
+G54D10*
+X500Y0D01*
+X0Y-500D02*
+G54D10*
+X0Y500D01*
+
+M02*

examples/gerbv_test_files/test-layer-step-and_repeat-1.gbx

@@ -0,0 +1,17 @@
+G04 Test step and repeat 1*
+G04 Repeat a crosshair 3 times in the x direction and 2 times in the Y *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%SRX3Y2I5.0J2*%
+%ADD10C,0.050*%
+
+G04 Draw crosshairs *
+X-1000Y0D02*
+G54D10*
+X1000Y0D01*
+X0Y-1000D02*
+G54D10*
+X0Y1000D01*
+
+M02*

examples/gerbv_test_files/test-layer-step-and_repeat-2.gbx

@@ -0,0 +1,18 @@
+G04 Test step and repeat 1*
+G04 Repeat a crosshair 3 times in the x direction and 2 times in the Y *
+G04 Handcoded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%SRX3Y2I1J1*%
+%ADD10C,0.050*%
+
+G04 Draw a simple square*
+G36*
+G01X00400Y0D02*
+X00600Y0D01*
+X00600Y00200D01*
+X00400Y00200D01*
+X00400Y0D01*
+G37*
+
+M02*

examples/gerbv_test_files/test-polygon-fill-1.gbx

@@ -0,0 +1,45 @@
+G04 Test drawing with polygon apertures*
+G04 Four small polygon fills aranged in a square
+G04 Hand coded by Julian Lamb *
+%MOIN*%
+%FSLAX23Y23*%
+%ADD10C,0.050*%
+
+G04 Draw a rectangle with a rounded right side*
+G36*
+G01X0Y0D02*
+X00200Y0D01*
+G75*
+G03X00200Y00200I0J00100D01*
+X0Y00200D01*
+G04 Do not close with a final line, so let gerbv automatically close*
+G37*
+
+G04 Draw a simple square*
+G36*
+G01X00400Y0D02*
+X00600Y0D01*
+X00600Y00200D01*
+X00400Y00200D01*
+X00400Y0D01*
+G37*
+
+G04 Draw a small diamond*
+G36*
+G01X00100Y00300D02*
+X00200Y00400D01*
+X00100Y00500D01*
+X0Y00400D01*
+X00100Y00300D01*
+G37*
+
+G04 Draw a very-narrow slit*
+G36*
+G01X00500Y00300D02*
+X00510Y00300D01*
+X00510Y00500D01*
+X00500Y00500D01*
+X00500Y00300D01*
+G37*
+
+M02*

examples/render_gerbv_tests.py

@@ -0,0 +1,59 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+"""
+This example renders the gerber files from the gerbv test suite
+"""
+
+import os
+from gerber.rs274x import read as gerber_read
+from gerber.excellon import read as excellon_read
+from gerber.render import GerberCairoContext
+from gerber.utils import listdir
+
+GERBER_FOLDER = os.path.abspath(os.path.join(os.path.dirname(__file__), 'gerbv_test_files'))
+
+if not os.path.isdir(os.path.join(os.path.dirname(__file__), 'outputs')):
+    os.mkdir(os.path.join(os.path.dirname(__file__), 'outputs'))
+
+for infile in listdir(GERBER_FOLDER):
+    if infile.startswith('test'):
+        try:
+            outfile = os.path.splitext(infile)[0] + '.png'
+            if infile.endswith('gbx'):
+                layer = gerber_read(os.path.join(GERBER_FOLDER, infile))
+                print("Loaded Gerber file: {}".format(infile))
+            elif infile.endswith('exc'):
+                layer = excellon_read(os.path.join(GERBER_FOLDER, infile))
+                print("Loaded Excellon file: {}".format(infile))
+            else:
+                continue
+
+            # Create a new drawing context
+            ctx = GerberCairoContext(1200)
+            ctx.color = (80./255, 80/255., 154/255.)
+            ctx.drill_color = ctx.color
+
+            # Draw the layer, and specify the rendering settings to use
+            layer.render(ctx)
+
+            # Write output to png file
+            print("Writing output to: {}".format(outfile))
+            ctx.dump(os.path.join(os.path.dirname(__file__), 'outputs', outfile))
+        except Exception as exc:
+            import traceback
+            traceback.print_exc()