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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 27 |
1 files changed, 22 insertions, 5 deletions
@@ -70,19 +70,21 @@ ctx.dump('panelized-board.txt') ## DXF file translation ### PCB Outline -You can also load a dxf file and handle that as same as RX-274x gerber file.<br> +You can also load a dxf file and handle that as same as RX-274x gerber file or Excellon NC file.<br> This function is useful to generate outline data of pnanelized PCB boad. ```python import gerberex -ctx = gerberex.GerberComposition() dxf = gerberex.read('outline.dxf') -ctx.merge(dxf) +ctx1 = gerberex.GerberComposition() +ctx1.merge(dxf) +ctx2 = gerberex.DrillComposition() +ctx2.merge(dxf) ``` Circle object, Arc object, Line object and Polyline object are supported. Other kind of objects in DXF file are ignored when translating to gerber data. -You can specify line width (default 0). PCB tools extension will translate DXF primitive shape to RX-274x line or arc sequense using circle aperture with diamater as same as specified line width.<br> +You can specify line width (default 0). PCB tools extension will translate DXF primitive shape to RX-274x line or arc sequense using circle aperture with diamater as same as specified line width. <br> ```python import gerberex @@ -93,6 +95,19 @@ dxf.width = 0.004 dxf.write('outline.gml') ``` +If ```FT_EXCELLON``` is specified for ```filetype``` argument of ```write()```, Excellon NC data is generated. In this case, Excellon file consists of routing commands using a specified width drill. + + +```python +import gerberex + +dxf = gerberex.read('outline.dxf') +dxf.to_metric() +dxf.width = 0.3 +dxf.write('outline.txt', filetype=dxf.FT_EXCELLON) +``` + + You can also translate DXF closed shape such as circle to RX-274x polygon fill sequence.<br> In order to fill closed shape, ```DM_FILL``` has to be set to ```draw_mode``` property. In this mode, All object except closed shapes listed below are ignored. @@ -100,6 +115,8 @@ In order to fill closed shape, ```DM_FILL``` has to be set to ```draw_mode``` pr - closed polyline - closed path which consists of lines and arcs +NOTE: ```DM_FILL``` can be used only to generate RX-274x data, it cannot be used to generate Excellon data. + ```python import gerberex @@ -122,7 +139,7 @@ outline.write('outline.gml') <img alt="mouse bites" src="https://raw.githubusercontent.com/wiki/opiopan/pcb-tools-extension/images/mousebites.png" width=200 align="right"> -If ```DM_MOUSE_BITES``` is specified for ```draw_mode```, filled circles are arranged along a DXF line object at equal intervals. <br> +If ```DM_MOUSE_BITES``` is specified for ```draw_mode```, filled circles are arranged at equal intervals along a paths consisted of DXF line, arc, circle, and plyline objects. <br> DXF file object in this state can be merged to excellon file also. That means you can arrange mouse bites easily. ```python |