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| author | Tectu <joel@unormal.org> | 2012-06-01 10:32:14 +0200 |
|---|---|---|
| committer | Tectu <joel@unormal.org> | 2012-06-01 10:32:14 +0200 |
| commit | 7a6b2dc0de4b6b85c87250a4bbeb5435ea3e21da (patch) | |
| tree | b8fbc5c8d3c3f5f704bac5b3b3ff203f199987f4 /graph.c | |
| parent | b561339a37594834da269802c96a82e7959453bf (diff) | |
| download | uGFX-7a6b2dc0de4b6b85c87250a4bbeb5435ea3e21da.tar.gz uGFX-7a6b2dc0de4b6b85c87250a4bbeb5435ea3e21da.tar.bz2 uGFX-7a6b2dc0de4b6b85c87250a4bbeb5435ea3e21da.zip | |
added graph files
Diffstat (limited to 'graph.c')
| -rw-r--r-- | graph.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/graph.c b/graph.c new file mode 100644 index 00000000..440f2507 --- /dev/null +++ b/graph.c @@ -0,0 +1,55 @@ +#include "glcd.h" + +#define GRID_X 20 +#define GRID_Y 20 + +#define MARKSIZE 5 // half + +static uint16_t x, y; // origins in graph + +void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) { + uint16_t i, length; + volatile uint16_t off; + + x = x0; + y = y0; + + // X-Axis + length = x1 - x0; + lcdDrawLine(x0, y0, x1, y0, color); + lcdDrawLine(x1, y0, x1-5, y0+5, color); + lcdDrawLine(x1, y0, x1-5, y0-5, color); + for(i=1; i<(length / GRID_X); i++) { + off = x0 + i*GRID_X; + lcdDrawLine(off, y0-MARKSIZE, off, y0+MARKSIZE, color); + } + + // Y-Axis + length = y0 - y1; + lcdDrawLine(x0, y0, x0, y1, color); + lcdDrawLine(x0, y1, x0-5, y1+5, color); + lcdDrawLine(x0, y1, x0+5, y1+5, color); + for(i=1; i<(length / GRID_Y); i++) { + off = x0 + i*GRID_Y; + lcdDrawLine(x0-MARKSIZE, off, x0+MARKSIZE, off, color); + } +} + +void graphDrawDots(int16_t coord[][2], uint16_t entries, uint16_t radius, uint16_t color) { + uint16_t i; + + for(i=0; i<entries; i++) + lcdDrawCircle(coord[i][0]+x, y-coord[i][1], radius, 1, color); +} + +void graphDrawNet(int16_t coord[][2], uint16_t entries, uint16_t radius, uint16_t lineColor, uint16_t dotColor) { + uint16_t i; + + for(i = 0; i < entries; ++i) + lcdDrawLine(coord[i-1][0]+x, y-coord[i-1][1], coord[i][0]+x, y-coord[i][1], lineColor); + for(i=0; i<entries; ++i) + if(radius != 0) + lcdDrawCircle(coord[i][0]+x, y-coord[i][1], radius, 1, dotColor); +} + + |