doxygen for graph
Joel Bodenmann
parent
377f80d0ca
commit
a922a268fd
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@ -18,6 +18,13 @@
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file graph.h
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* @brief GRAPH module header file.
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*
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* @addtogroup GRAPH
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* @{
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*/
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#ifndef GRAPH_H
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#define GRAPH_H
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@ -27,6 +34,10 @@
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#if GFX_USE_GRAPH
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/*===========================================================================*/
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/* Type definitions */
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/*===========================================================================*/
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typedef struct _Graph {
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coord_t origin_x;
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coord_t origin_y;
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@ -52,6 +63,10 @@ typedef struct _Graph {
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extern "C" {
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#endif
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/*===========================================================================*/
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/* Type definitions */
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/*===========================================================================*/
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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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void graphDrawDots(Graph *g, int coord[][2], uint16_t entries, uint16_t radius, uint16_t color);
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@ -64,4 +79,5 @@ void graphDrawNet(Graph *g, int coord[][2], uint16_t entries, uint16_t radius, u
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#endif /* GFX_USE_GRAPH */
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#endif
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/** @} */
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87
src/graph.c
87
src/graph.c
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@ -18,6 +18,13 @@
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file graph.c
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* @brief GRAPH module code.
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*
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* @addtogroup GRAPH
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* @{
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*/
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#include <stdlib.h>
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#include "ch.h"
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#include "hal.h"
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@ -26,6 +33,15 @@
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#if GFX_USE_GRAPH
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/**
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* @brief Draw a horizontal dot line.
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*
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* @param[in] x0,y0,x1 The coordinates where the dot line will be drawn
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* @param[in] space The distance from one dot to the other in pixels
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* @param[in] color The color of the dots
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*
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* @notapi
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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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@ -36,6 +52,15 @@ static void _horizontalDotLine(coord_t x0, coord_t y0, coord_t x1, uint16_t spac
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} while(count--);
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}
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/*
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* @brief Draw a vertical dot line.
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*
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* @param[in] x0,y0,y1 The coordinates where the dot line will be drawn
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* @param[in] space The distance from one dot to the other in pixels
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* @param[in] color The color of the dots
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*
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* @notapi
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*/
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static void _verticalDotLine(coord_t x0, coord_t y0, coord_t y1, uint16_t space, color_t color) {
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uint16_t offset = y0;
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uint16_t count = ((y1 - y0) / space);
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@ -46,6 +71,16 @@ 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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/*
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* @brief Draws a graph system
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* @details Draws a graph system with two axis, X and Y.
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* Different optinal parameters like grid size, grid color,
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* arrow color (if any) etc. are defined in the struct.
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*
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* @param[in] g A pointer to a Graph struct
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*
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* @init
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*/
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void graphDrawSystem(Graph *g) {
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uint16_t i;
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@ -85,7 +120,17 @@ void graphDrawSystem(Graph *g) {
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}
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}
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bool_t _boundaryCheck(Graph *g, coord_t x, coord_t y) {
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/**
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* @brief Checks if x and y are inside the graph area
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*
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* @param[in] g The pointer to the graph
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* @param[in] x,y The coordinates to be checked
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*
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* @return 1 if outside the graph area, 0 otherwise
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*
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* @notapi
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*/
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static bool_t _boundaryCheck(Graph *g, coord_t x, coord_t y) {
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if(g->origin_x + x > g->x1)
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return 1;
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if(g->origin_x + x < g->x0)
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@ -98,6 +143,18 @@ bool_t _boundaryCheck(Graph *g, coord_t x, coord_t y) {
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return 0;
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}
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/**
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* @brief Draws a single dot into the graph
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* @note The dot won't be drawn if it's outsite the max and min
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* values of the graph.
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*
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* @param[in] g The pointer to the graph
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* @param[in] x,y The coordinates where the data point will be drawn
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* @param[in] radius The radius of the dot. One pixel if 0.
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* @param[in] color The color of the dot.
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*
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* @api
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*/
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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(_boundaryCheck(g, x, y))
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return;
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@ -108,6 +165,19 @@ void graphDrawDot(Graph *g, coord_t x, coord_t y, uint16_t radius, color_t color
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gdispFillCircle(g->origin_x + x, g->origin_y - y, radius, color);
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}
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/**
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* @brief Draws multiple dots into the graph
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* @note A dot won't be drawn if it's outsite the max and min
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* values of the graph.
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*
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* @param[in] g The pointer to the graph
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* @param[in] coord A two dimensional int array containing the dots coordinates.
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* @param[in] entries How many dots will be drawn (array index from 0 to entries);
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* @param[in] radius The radius of the dots. One pixel if 0.
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* @param[in] color The color of the dots.
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*
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* @api
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*/
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void graphDrawDots(Graph *g, int coord[][2], uint16_t entries, uint16_t radius, uint16_t color) {
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uint16_t i;
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@ -122,6 +192,20 @@ void graphDrawDots(Graph *g, int coord[][2], uint16_t entries, uint16_t radius,
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}
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}
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/**
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* @brief Draws multiple dots into the graph and connects them by a line
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* @note A dot won't be drawn if it's outsite the max and min
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* values of the graph.
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*
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* @param[in] g The pointer to the graph
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* @param[in] coord A two dimensional int array containing the dots coordinates.
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* @param[in] entries How many dots will be drawn (array index from 0 to entries);
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* @param[in] radius The radius of the dots. One pixel if 0.
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* @param[in] lineColor The color of the line.
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* @param[in] dotColor The color of the dots.
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*
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* @api
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*/
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void graphDrawNet(Graph *g, 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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@ -146,4 +230,5 @@ void graphDrawNet(Graph *g, int coord[][2], uint16_t entries, uint16_t radius, u
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}
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#endif /* GFX_USE_GRAPH */
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/** @} */
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