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Work on y legend

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This commit is contained in:
7u83 2017-03-25 19:09:12 +01:00
parent 84c3ac6740
commit f337ab9a08
2 changed files with 27 additions and 9 deletions
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31
src/chart/Chart.java
View File

@ -263,8 +263,10 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
// ys = c_rect.height / c_mm.getDiff();
return (c_rect.height - (((float)Math.log(y) - c_mm.getMin()) * ys)) + c_rect.y;
// return (c_rect.height - (((float)Math.log(y) - c_mm.getMin()) * ys)) + c_rect.y;
return c_rect.height + c_rect.y - ((float)Math.log(y) - c_mm.getMin()) * ys;
/* float m = c_mm.getMax() / c_mm.getMin();
float fac = (float) c_rect.height / (float) Math.log(m);
@ -293,9 +295,21 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
// -(y-c_rect.y-c_rect.heigh) = (val - c_mm.getMin()) * c_yscaling
// (-(y-c_rect.y-c_rect.heigh))/c_yscaling = (val - c_mm.getMin())
if (logs){
return (-(Math.exp(y)-c_rect.y-c_rect.height))/c_yscaling+Math.exp(c_mm.getMin());
if (c_mm.isLog()){
float ys = c_rect.height / c_mm.getDiff();
//val = return c_rect.height + c_rect.y - ((float)Math.log(y) - c_mm.getMin()) * ys;
// ((float)Math.log(y) - c_mm.getMin()) * ys = c_rect.height + c_rect.y
// ((float)Math.log(y) - c_mm.getMin()) = (c_rect.height + c_rect.y)/ys
// ((float)Math.log(y) = (c_rect.height + c_rect.y)/ys + c_mm.getMin())
//return (-(Math.exp(y)-c_rect.y-c_rect.height))/ys+c_mm.getMin();
return Math.exp( (c_rect.height + c_rect.y)/ys + c_mm.getMin() );
}
@ -413,7 +427,7 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
for (int yp=(int) y2; yp<y1; yp+=em_size*2) {
g.drawLine(dim.width + dim.x - yw, yp, dim.width + dim.x - yw + em_size , yp);
double v1 = getValAtY(y1);
double v1 = getValAtY(yp);
g.drawString(String.format("%.2f", v1), dim.width + dim.x - yw + em_size * 1.5f, yp + c_font_height / 3);
}
@ -552,9 +566,8 @@ System.out.printf("v1 %f, v2 %f\n",v1,v2);
ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f);
this.ct = ChartType.CANDLESTICK;
logs=true;
c_mm.setLog(true);
logs=false;
c_mm.setLog(false);
drawChart(ctx);
c_mm = data.getVolMinMax(first_bar, last_bar);

5
src/sesim/MinMax.java
View File

@ -48,6 +48,11 @@ public class MinMax {
return !log ? max - min : max_log - min_log;
}
public float getDiff(boolean plog) {
return !plog ? max - min : max_log - min_log;
}
public float getMin() {
return !log ? min : min_log;
}