# kicad-developers team mailing list archive

## Re: HPGL

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```Hello Dick,

thanks for the hints. The macro works good. The patch is attached.

```
```(I will never use HPGL, and don't give a crap about it. If somebody just wants to fix it,
go ahead.
```
```
```
Many old pen plotters use only HPGL. They can coat directly the PCB. For these users (me too) is a accurate and fast HPGL plot important.
```
Regards, Andreas
```
```=== modified file common/common_plotHPGL_functions.cpp
--- common/common_plotHPGL_functions.cpp	2012-10-13 18:54:33 +0000
+++ common/common_plotHPGL_functions.cpp	2013-02-03 20:38:30 +0000
@@ -393,14 +393,16 @@
DPOINT centre_dev = userToDeviceCoordinates( centre );

if( plotMirror )
-        angle = (StAngle - EndAngle) / 10.0;
+        angle = StAngle - EndAngle;
else
-        angle = (EndAngle - StAngle) / 10.0;
+        angle = EndAngle - StAngle;
+    NORMALIZE_ANGLE_180( angle );
+    angle /= 10;

// Calculate start point,
wxPoint cmap;
-    cmap.x  = (int) ( centre.x + ( radius * cos( RAD2DEG( StAngle / 10.0 ) ) ) );
-    cmap.y  = (int) ( centre.y - ( radius * sin( RAD2DEG( StAngle / 10.0 ) ) ) );
+    cmap.x  = int( centre.x + ( radius * cos( DEG2RAD( StAngle / 10.0 ) ) ) );
+    cmap.y  = int( centre.y - ( radius * sin( DEG2RAD( StAngle / 10.0 ) ) ) );
DPOINT  cmap_dev = userToDeviceCoordinates( cmap );

fprintf( outputFile,
@@ -478,7 +480,7 @@

double rsize = userToDeviceSize( radius );

-    fprintf( outputFile, "PA %.0f,%.0fd;CI %.0f;\n",
+    fprintf( outputFile, "PA %.0f,%.0f;CI %.0f;\n",
pos_dev.x, pos_dev.y, rsize );

if( trace_mode == FILLED )        // Plot in filled mode.

```

### Follow ups

• Re: HPGL
From: Øyvind Aabling, 2013-02-04
• Re: HPGL
From: Dick Hollenbeck, 2013-02-04

### References

• HPGL
From: Andreas Beutling, 2013-02-01
• Re: HPGL
From: Dick Hollenbeck, 2013-02-01
• Re: HPGL
From: Andreas Beutling, 2013-02-02
• Re: HPGL
From: Dick Hollenbeck, 2013-02-02
• Re: HPGL
From: Andreas Beutling, 2013-02-02
• Re: HPGL
From: Andreas Beutling, 2013-02-03
• Re: HPGL
From: Dick Hollenbeck, 2013-02-03
• Re: HPGL
From: Dick Hollenbeck, 2013-02-03
• Re: HPGL
From: Edwin van den Oetelaar, 2013-02-03
• Re: HPGL
From: Dick Hollenbeck, 2013-02-03
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