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Post by rayman on Oct 19, 2016 10:33:20 GMT -8
hi ... there is a possibility to draw such a bar-chart with the gd2-lib all bars individually is not an option ... or anyway ?  |
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Post by jamesbowman on Oct 19, 2016 15:58:47 GMT -8
Quick question: why not draw all bars individually? There seem to be around 60 bars in that picture, and drawing a wide line for each bar seems like it would get the same look.
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Post by tftlcdcyg on Oct 19, 2016 22:15:41 GMT -8
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Post by tftlcdcyg on Oct 19, 2016 22:22:23 GMT -8
offtopic
James, good to see you again!
Please take a look inside GD3 (if you give me your permission to use this name)
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Post by tftlcdcyg on Oct 19, 2016 22:25:56 GMT -8
Is it possible to increase the limit of 256 kb to 1 mb inside of the gd2asset tool for windows?
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Post by rayman on Oct 19, 2016 23:15:52 GMT -8
wow ... thx for you replay ...
you first draw the bars and then loads the image over it ... correct ?
how do you get the picture in the bar area transparent ... ?
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Post by rayman on Oct 20, 2016 2:03:40 GMT -8
arg ... forget my stupid question, i craete the image with inkscape and set the region transparent ... works fine thx for the very nice tip ... my test isn't nice but works ... beautiful comes later  |
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Post by rayman on Oct 20, 2016 7:01:28 GMT -8
ok ... almost my test code GD.Clear();
GD.SaveContext();
GD.Begin(LINES);
GD.LineWidth(50);
GD.ColorRGB(DARK_GRAY);
for ( unsigned int i = 0; i < 60; i++ ) {
GD.Vertex2ii(8*i, 0);
GD.Vertex2ii(8*i, 272*16);
}
// color bars
int rpmProBar = 10000 / 60;
GD.ColorRGB(GREEN);
for ( unsigned int i = 0; i < 60; i++ ) {
if ( i*rpmProBar > data.rpm )
break;
if ( data.rpm > config.shiftLightRun )
GD.ColorRGB(RED);
GD.Vertex2ii(8*i, 0);
GD.Vertex2ii(8*i, 272);
}
GD.RestoreContext();
GD.SaveContext();
GD.Begin(BITMAPS);
GD.Vertex2ii(0, 0, BB_HANDLE);
GD.RestoreContext();
GD.swap();
why does it all turn on red ... and not just the last ? where is my mistake ... thx for hint  |
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Post by jamesbowman on Oct 24, 2016 7:55:12 GMT -8
I think instead of:
if ( data.rpm > config.shiftLightRun )
GD.ColorRGB(RED);
you want:
if ( (i*rpmProBar) > config.shiftLightRun )
GD.ColorRGB(RED);
so that the bars *after* "shiftLightRun" turn red.
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Post by rayman on Oct 26, 2016 12:19:16 GMT -8
uff ... simple misstake thx |
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