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How can i numerate x axis in a graph?

erminaermina
edited January 2018 in Library Questions

This code bellow is about making a graph from, loading a csv file.My only problem is that i can not numerate the x axis, as you see in the picture of my graph bellow.But my y axis was numerated automatically.

import grafica.*;

GPlot plot;

Table table;

void setup() {
   size(800, 410);
  table = loadTable("data.csv", "header");
  table.setColumnType("time", Table.FLOAT);
  table.setColumnType("ECG", Table.FLOAT);

  GPointsArray points = new GPointsArray();
  float[] pointSizes = new float[table.getRowCount()];
   for (int row = 0; row < table.getRowCount(); row++) {
    Float time = table.getFloat(row,"time");
   Float ECG = table.getFloat(row,"ECG");

     points.add(time,ECG); 
      pointSizes[row] =5;
  }
  plot = new GPlot(this);
  plot.setPos(0, 0);
  plot.setDim(700, 300);
  plot.setMar(60, 70, 40, 70);
  plot.getXAxis().setNTicks(0);
  plot.setPoints(points);
  plot.setPointColor(color(100, 100, 255, 50));
  plot.setPointSizes(pointSizes);
  plot.getYAxis().setAxisLabelText("ECG");
  plot.getXAxis().setAxisLabelText("Time");
  plot.setAxesOffset(1);
  plot.setTicksLength(1);


}
void draw() {
  background(255);

  // Draw the plot  
 plot.beginDraw();
  //plot.defaultDraw();
  plot.drawBackground();
  plot.drawBox();
  plot.drawXAxis();
  plot.drawYAxis();
  plot.drawTopAxis();
  plot.drawRightAxis();
  plot.drawTitle();
  plot.drawPoints();
  plot.drawLines();
  plot.drawGridLines(GPlot.BOTH);
  plot.drawLines();
   plot.drawLabels();
  //plot.drawGridLines(GPlot.VERTICAL);
  //plot.drawFilledContours(GPlot.HORIZONTAL, 0);
  plot.endDraw();
 }

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Answers

  • ChrisirChrisir
    Answer ✓

    Not sure how this library works but in setup you have this for the x-axis but not for the y

    plot.getXAxis().setNTicks(0);

    Maybe comment out this line

    As we discussed for the graph itself: it could also be that the data is not suitable.

    Maybe float is wrong

    In the version above I don’t see the innovations I brought in at all. Maybe my sketch works?

  • erminaermina

    Thank you so much for your help.!!! I am grateful to you!!!

    Yes, you are right!!! Th wrong line was plot.getXAxis().setNTicks(0);

    Now i have numerated x- axis but i cant understand the numbers..I thin that the numbers in x-axis are wrong..

  • ChrisirChrisir
    edited January 2018

    See other thread

  • koogskoogs

    please don't start multiple threads for the same bit of code, it gets confusing.

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