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Adding comments to graph demo

ugfx_release_2.6
Joel Bodenmann 2016-01-08 07:27:26 +01:00
parent 4b891ebc04
commit 6937cc3f0f
1 changed files with 67 additions and 60 deletions
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55
demos/modules/gwin/graph/main.c
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@ -30,6 +30,7 @@
#include "gfx.h" #include "gfx.h"
#include "math.h" #include "math.h"
// A set of data points that will be displayed in the graph
static const point data[5] = { static const point data[5] = {
{ -40, -40 }, { -40, -40 },
{ 70, 40 }, { 70, 40 },
@ -38,26 +39,26 @@ static const point data[5] = {
{ 280, 200 } { 280, 200 }
}; };
static GGraphObject g; // A graph styling
static GGraphStyle GraphStyle1 = { static GGraphStyle GraphStyle1 = {
{ GGRAPH_POINT_DOT, 0, Blue }, // point { GGRAPH_POINT_DOT, 0, Blue }, // Point
{ GGRAPH_LINE_NONE, 2, Gray }, // line { GGRAPH_LINE_NONE, 2, Gray }, // Line
{ GGRAPH_LINE_SOLID, 0, White }, // x axis { GGRAPH_LINE_SOLID, 0, White }, // X axis
{ GGRAPH_LINE_SOLID, 0, White }, // y axis { GGRAPH_LINE_SOLID, 0, White }, // Y axis
{ GGRAPH_LINE_DASH, 5, Gray, 50 }, // x grid { GGRAPH_LINE_DASH, 5, Gray, 50 }, // X grid
{ GGRAPH_LINE_DOT, 7, Yellow, 50 }, // y grid { GGRAPH_LINE_DOT, 7, Yellow, 50 }, // Y grid
GWIN_GRAPH_STYLE_POSITIVE_AXIS_ARROWS // flags GWIN_GRAPH_STYLE_POSITIVE_AXIS_ARROWS // Flags
}; };
// Another graph styling
static const GGraphStyle GraphStyle2 = { static const GGraphStyle GraphStyle2 = {
{ GGRAPH_POINT_SQUARE, 5, Red }, // point { GGRAPH_POINT_SQUARE, 5, Red }, // Point
{ GGRAPH_LINE_DOT, 2, Pink }, // line { GGRAPH_LINE_DOT, 2, Pink }, // Line
{ GGRAPH_LINE_SOLID, 0, White }, // x axis { GGRAPH_LINE_SOLID, 0, White }, // X axis
{ GGRAPH_LINE_SOLID, 0, White }, // y axis { GGRAPH_LINE_SOLID, 0, White }, // Y axis
{ GGRAPH_LINE_DASH, 5, Gray, 50 }, // x grid { GGRAPH_LINE_DASH, 5, Gray, 50 }, // X grid
{ GGRAPH_LINE_DOT, 7, Yellow, 50 }, // y grid { GGRAPH_LINE_DOT, 7, Yellow, 50 }, // Y grid
GWIN_GRAPH_STYLE_POSITIVE_AXIS_ARROWS // flags GWIN_GRAPH_STYLE_POSITIVE_AXIS_ARROWS // Flags
}; };
int main(void) { int main(void) {
@ -66,39 +67,45 @@ int main(void) {
gfxInit(); gfxInit();
// Create the graph window
{ {
GWindowInit wi; GWindowInit wi;
gwinClearInit(&wi);
wi.show = TRUE; wi.show = TRUE;
wi.x = wi.y = 0; wi.x = wi.y = 0;
wi.width = gdispGetWidth(); wi.width = gdispGetWidth();
wi.height = gdispGetHeight(); wi.height = gdispGetHeight();
gh = gwinGraphCreate(&g, &wi); gh = gwinGraphCreate(0, &wi);
} }
// Set the graph origin and style
gwinGraphSetOrigin(gh, gwinGetWidth(gh)/2, gwinGetHeight(gh)/2); gwinGraphSetOrigin(gh, gwinGetWidth(gh)/2, gwinGetHeight(gh)/2);
gwinGraphSetStyle(gh, &GraphStyle1); gwinGraphSetStyle(gh, &GraphStyle1);
gwinGraphDrawAxis(gh); gwinGraphDrawAxis(gh);
for(i = 0; i < gwinGetWidth(gh); i++) // Draw a sine wave
gwinGraphDrawPoint(gh, i-gwinGetWidth(gh)/2, 80*fsin(2*i/5)); //sin(2*0.2*GFX_PI*i/180)); for(i = 0; i < gwinGetWidth(gh); i++) {
gwinGraphDrawPoint(gh, i-gwinGetWidth(gh)/2, 80*sin(2*0.2*M_PI*i/180));
}
// Modify the style
gwinGraphStartSet(gh); gwinGraphStartSet(gh);
GraphStyle1.point.color = Green; GraphStyle1.point.color = Green;
gwinGraphSetStyle(gh, &GraphStyle1); gwinGraphSetStyle(gh, &GraphStyle1);
for(i = 0; i < gwinGetWidth(gh)*5; i++) // Draw a different sine wave
gwinGraphDrawPoint(gh, i/5-gwinGetWidth(gh)/2, 95*fsin(2*i/5)); //sin(2*0.2*GFX_PI*i/180)); for(i = 0; i < gwinGetWidth(gh)*5; i++) {
gwinGraphDrawPoint(gh, i/5-gwinGetWidth(gh)/2, 95*sin(2*0.2*M_PI*i/180));
}
// Change to a completely different style
gwinGraphStartSet(gh); gwinGraphStartSet(gh);
gwinGraphSetStyle(gh, &GraphStyle2); gwinGraphSetStyle(gh, &GraphStyle2);
// Draw a set of points
gwinGraphDrawPoints(gh, data, sizeof(data)/sizeof(data[0])); gwinGraphDrawPoints(gh, data, sizeof(data)/sizeof(data[0]));
while(TRUE) { while(TRUE) {
gfxSleepMilliseconds(100); gfxSleepMilliseconds(100);
} }
} }