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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -107,14 +107,14 @@ outline.write('outline.gml') ``` ### Drawing Mode -PCB tools extension provide three type of translation method that affects geometric finish. These method are specified a value for ```draw_mode``` attribute, ```DM_LINE```, ```DM_MOUSE_BITES```, or ```DM_FILL```.<br> +PCB tools extension provide three type of translation method that affects geometric finish. These method are specified a value for ```draw_mode``` attribute, as ```DM_LINE```, ```DM_MOUSE_BITES```, or ```DM_FILL```.<br> ```DM_LINE``` and ```DM_MOUSE_BITES``` are used to translate to both of RX-274x and Excellon, however ```DM_FILL``` is used to translate to only RX-274x.  - **draw_mode = DM_LINE**<br> - All edge expressed as DXF line object, circle object, arc object and plyline objects are translated to line and arc applied a circular aperture in case of RX-274x. That circular aperture r radius is specified by ```width``` attribute. Default value of width is 0.<br> - In case of Excellon, DXF objects are translated to routing path command sequence. + All edge expressed as DXF line object, circle object, arc object and plyline objects are translated to line and arc applied a circular aperture in case of RX-274x. That circular aperture radius is specified by ```width``` attribute. Default value of width is 0.<br> + In case of Excellon, DXF objects are translated to routing path command sequence.<br> This function is useful to generate outline data of pnanelized PCB boad. ```python @@ -149,8 +149,8 @@ PCB tools extension provide three type of translation method that affects geomet ``` - **draw_mode = DM_FILL**<br> - You can 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. + You can translate DXF closed shapes such as circle to RX-274x polygon fill sequence.<br> + In order to fill closed shapes, ```DM_FILL``` has to be set to ```draw_mode``` property. In this mode, All object except closed shapes listed below are ignored. - circle - closed polyline @@ -158,7 +158,7 @@ PCB tools extension provide three type of translation method that affects geomet If a closed shape is completly included in other closed shape, The inner shape will be draw with reversed polality of container shape as above example image.<br> - I assume there are two typical usecase for this mode.<br> + I assume there are two typical use cases for this mode.<br> One is to arrange logo design on silk layer. This is superior to other method generating raster image data since image data express as vector data.<br> The other one is generating gerber data represented cropped area of panelized PCB. By merging rectangle and PCB outline data, generate a file represented cropped area as below, and this kind of data is useful to make PCB image look good a little bit.<br> @@ -169,7 +169,7 @@ PCB tools extension provide three type of translation method that affects geomet ctx = gerberex.GerberComposition() - rectangle = gerberex.rectangle(width=100, height=100, units='metric') + rectangle = gerberex.rectangle(width=100, height=100, left=0, bottom=0, units='metric') rectangle.draw_mode = rectangle.DM_FILL ctx.merge(rectangle) |