graph update
Joel Bodenmann
parent
0004d3824b
commit
0c2b45dbd5
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@ -24,28 +24,32 @@
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#if GFX_USE_GRAPH
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typedef struct _Graph {
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coord_t x0;
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coord_t y0;
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coord_t x1;
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coord_t y1;
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coord_t origin_x;
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coord_t origin_y;
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int xmin;
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int xmax;
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int ymin;
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int ymax;
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uint16_t grid_size;
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uint16_t dot_space;
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bool_t full_grid;
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bool_t arrows;
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color_t axis_color;
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color_t grid_color;
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/* do never modify values below this line manually */
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coord_t x0;
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coord_t x1;
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coord_t y0;
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coord_t y1;
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} Graph;
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#ifdef __cplusplus
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extern "C" {
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#endif
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void graphDrawOneQuadrat(Graph *g);
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void graphDrawFourQuadrants(Graph *g);
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void graphDrawDot(coord_t x, coord_t y, uint16_t radius, color_t color);
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void graphDrawDots(int coord[][2], uint16_t entries, uint16_t radius, uint16_t color);
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void graphDrawNet(int coord[][2], uint16_t entries, uint16_t radius, uint16_t lineColor, uint16_t dotColor);
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point_t graphGetOrigin(void);
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void graphDrawSystem(Graph *g);
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void graphDrawDot(Graph *g, coord_t x, coord_t y, uint16_t radius, color_t color);
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#ifdef __cplusplus
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}
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125
src/graph.c
125
src/graph.c
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@ -25,16 +25,6 @@
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#if GFX_USE_GRAPH
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static point_t origin; // origin of graph
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static void swapCoordinates(coord_t *a, coord_t *b) {
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coord_t temp;
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temp = *b;
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*b = *a;
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*a = temp;
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}
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static void _horizontalDotLine(coord_t x0, coord_t y0, coord_t x1, uint16_t space, color_t color) {
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uint16_t offset = x0;
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uint16_t count = ((x1 - x0) / space);
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@ -55,104 +45,51 @@ static void _verticalDotLine(coord_t x0, coord_t y0, coord_t y1, uint16_t space,
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} while(count--);
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}
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void graphDrawOneQuadrant(Graph *g) {
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if(g->x0 > g->x1)
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swapCoordinates(&g->x0, &g->x1);
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if(g->y0 > g->y1)
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swapCoordinates(&g->y0, &g->y1);
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void graphDrawSystem(Graph *g) {
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uint16_t i;
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uint16_t length_x = (g->x1 - g->y0);
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uint16_t length_y = (g->y1 - g->y0);
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uint16_t middle_x = (g->x1 - g->x0) / 2;
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uint16_t middle_y = (g->y1 - g->y0) / 2;
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origin.x = g->x0;
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origin.y = g->y1;
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/* X Axis */
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gdispDrawLine(g->x0, g->y1, g->x1, g->y1, g->axis_color);
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if(g->grid_size > 0)
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for(i = 0; i <= (length_y / g->grid_size); i++)
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_horizontalDotLine(g->x0, g->y0 + g->grid_size * i, g->x1, g->dot_space, g->grid_color);
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/* Y Axis */
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gdispDrawLine(g->x0, g->y0, g->x0, g->y1, g->axis_color);
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if(g->grid_size > 0);
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for(i = 0; i <= (length_x / g->grid_size); i++)
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_verticalDotLine(g->x0 + g->grid_size * i, g->y0, g->y1, g->dot_space, g->grid_color);
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}
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void graphDrawFourQuadrants(Graph *g) {
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if(g->x0 > g->x1)
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swapCoordinates(&g->x0, &g->x1);
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if(g->y0 > g->y1)
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swapCoordinates(&g->y0, &g->y1);
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uint16_t i;
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uint16_t middle_x = (g->x1 - g->x0) / 2;
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uint16_t middle_y = (g->y1 - g->y0) / 2;
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origin.x = middle_x;
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origin.y = middle_y;
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g->x0 = g->origin_x - abs(g->xmin);
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g->x1 = g->origin_x + abs(g->xmax);
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g->y0 = g->origin_y + abs(g->ymin);
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g->y1 = g->origin_y - abs(g->ymax);
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/* X - Axis */
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gdispDrawLine(g->x0, middle_y, g->x1, middle_y, g->axis_color);
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/* draw X - Grid ? */
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if(g->grid_size > 0) {
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for(i = 1; i <= (middle_y / g->grid_size); i++) {
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if(g->grid_size + g->grid_size * i <= middle_y)
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_horizontalDotLine(g->x0, middle_y - g->grid_size * i, g->x1, g->dot_space, g->grid_color);
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if(g->grid_size * i <= middle_y)
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_horizontalDotLine(g->x0, middle_y + g->grid_size * i, g->x1, g->dot_space, g->grid_color);
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gdispDrawLine(g->x0, g->origin_y, g->x1, g->origin_y, g->axis_color);
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if(g->arrows) {
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gdispDrawLine(g->x1, g->origin_y, g->x1-5, g->origin_y+5, g->axis_color);
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gdispDrawLine(g->x1, g->origin_y, g->x1-5, g->origin_y-5, g->axis_color);
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}
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if(g->full_grid) {
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for(i = 1; i <= ((g->origin_y - g->y1) / g->grid_size); i++) {
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_horizontalDotLine(g->x0, g->origin_y - g->grid_size * i, g->x1, g->dot_space, g->grid_color);
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}
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for(i = 1; i <= ((g->y0 - g->origin_y) / g->grid_size); i++) {
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_horizontalDotLine(g->x0, g->origin_y + g->grid_size * i, g->x1, g->dot_space, g->grid_color);
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}
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}
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/* Y - Axis */
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gdispDrawLine(middle_x, g->y0, middle_x, g->y1, g->axis_color);
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/* draw Y - Grid ? */
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if(g->grid_size > 0) {
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for(i = 1; i <= (middle_x / g->grid_size); i++) {
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if(g->grid_size + g->grid_size * i <= middle_x)
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_verticalDotLine(middle_x - g->grid_size * i, g->y0, g->y1, g->dot_space, g->grid_color);
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if(g->grid_size * i <= middle_x)
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_verticalDotLine(middle_x + g->grid_size * i, g->y0, g->y1, g->dot_space, g->grid_color);
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gdispDrawLine(g->origin_x, g->y0, g->origin_x, g->y1, g->axis_color);
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if(g->arrows) {
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gdispDrawLine(g->origin_x, g->y1, g->origin_x-5, g->y1+5, g->axis_color);
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gdispDrawLine(g->origin_x, g->y1, g->origin_x+5, g->y1+5, g->axis_color);
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}
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if(g->full_grid) {
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for(i = 1; i <= ((g->origin_x - g->x0) / g->grid_size); i++) {
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_verticalDotLine(g->origin_x - g->grid_size * i, g->y1, g->y0, g->dot_space, g->grid_color);
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}
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for(i = 1; i <= ((g->x1 - g->origin_x) / g->grid_size); i++) {
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_verticalDotLine(g->origin_x + g->grid_size * i, g->y1, g->y0, g->dot_space, g->grid_color);
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}
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}
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}
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void graphDrawDot(coord_t x, coord_t y, uint16_t radius, color_t color) {
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void graphDrawDot(Graph *g, coord_t x, coord_t y, uint16_t radius, color_t color) {
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if(radius == 0)
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gdispDrawPixel(origin.x + x, origin.y + y, color);
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gdispDrawPixel(g->origin_x + x, g->origin_y + y, color);
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else
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gdispFillCircle(origin.x + x, origin.y + y, radius, color);
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}
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void graphDrawDots(int coord[][2], uint16_t entries, uint16_t radius, uint16_t color) {
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uint16_t i;
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for(i = 0; i < entries; i++) {
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if(radius == 0)
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gdispDrawPixel(coord[i][0] + origin.x, origin.y - coord[i][1], color);
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else
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gdispFillCircle(coord[i][0] + origin.x, origin.y - coord[i][1], radius, color);
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}
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}
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void graphDrawNet(int coord[][2], uint16_t entries, uint16_t radius, uint16_t lineColor, uint16_t dotColor) {
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uint16_t i;
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for(i = 0; i < entries; ++i)
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gdispDrawLine(coord[i-1][0] + origin.x, origin.y - coord[i-1][1], coord[i][0] + origin.x, origin.y - coord[i][1], lineColor);
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for(i = 0; i < entries; ++i)
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if(radius != 0)
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lcdFillCircle(coord[i][0] + origin.x, origin.y - coord[i][1], radius, dotColor);
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}
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point_t graphGetOrigin(void) {
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return origin;
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gdispFillCircle(g->origin_x + x, g->origin_y + y, radius, color);
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}
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#endif /* GFX_USE_GRAPH */
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