hcopywidth and hcopyheight failed with SVG plot

cp_getvar read CP_NUM, not CP_STRING
Patch #108 contributed by Giles Atkinson

Add hcopywidth and hcopyheight to example nmos_out_BSIM330_svg.sp

examples/svg/nmos_out_BSIM330_svg.sp

@@ -60,6 +60,7 @@ hardcopy plot_3.svg vss#branch title 'Drain current versus drain voltage' xlabel
 
 * reset the colors
 set svg_intopts = ( 512, 384, 12, 0, 1, 2, 2 )
+
 unset color0
 unset color1
 unset color2
@@ -69,6 +70,9 @@ hardcopy plot_4.svg vss#branch title 'Drain current versus drain voltage' xlabel
 set color0="#F0E68C"
 set color1="#DDA0DD"
 set color2"#EE82EE"
+* set width and hight
+set hcopywidth=1024
+set hcopyheight=768
 hardcopy plot_5.svg vss#branch title 'Drain current versus drain voltage' xlabel 'Drain voltage' ylabel 'Drain current'
 
 

src/frontend/svg.c

@@ -154,18 +154,10 @@ SVG_Init(void)
     }
 
     /* plot size */
-    if (!cp_getvar("hcopywidth", CP_STRING, &Cfg.ints[SVG_WIDTH], sizeof(Cfg.ints[SVG_WIDTH]))) {
-        dispdev->width = Cfg.ints[SVG_WIDTH];
-    }
-    else {
-        dispdev->width = SVGwidth;
-    }
-    if (!cp_getvar("hcopyheight", CP_STRING, &Cfg.ints[SVG_HEIGHT], sizeof(Cfg.ints[SVG_HEIGHT]))) {
-        dispdev->height = Cfg.ints[SVG_HEIGHT];
-    }
-    else {
-        dispdev->height = SVGheight;
-    }
+    cp_getvar("hcopywidth", CP_NUM, &SVGwidth, 0);
+    dispdev->width = SVGwidth;
+    cp_getvar("hcopyheight", CP_NUM, &SVGheight, 0);
+    dispdev->height = SVGheight;
 
     /* get linewidth information from spinit */
     if (!cp_getvar("xbrushwidth", CP_NUM, &Cfg.ints[SVG_STROKE_WIDTH], 0))