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02_user_tutorials:08_technical_features:plotting-data

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02_user_tutorials:08_technical_features:plotting-data [2025/01/24 15:51] – removed - external edit (Unknown date) 127.0.0.102_user_tutorials:08_technical_features:plotting-data [2025/01/24 16:36] (current) – tim2
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 +{{howhard>2}}
 +====== Datasets and Plots inside GroIMP ======
 +
 +
 +GroIMP comes with an included management of dataset and the ability to visualize them, in the following only a small introduction is given. 
 +
 +===== Datasets in RGG =====
 +
 +A datasets in GroIMP are simple tables, that can be referenced from RGG and the GUI. 
 +
 +==== Getting data in ====
 +
 +To create a Dataset in GroIMP the DataSetRef object is used as following:
 +<code java>
 +DatasetRef diagram = new DatasetRef("plot");
 +</code>
 +
 +In a dataset each row is described as a Dataseries and to add data a new series has to be added as following:
 +
 +<code java>
 +Dataseries ds = diagram.addRow();
 +</code> 
 +
 +Now we can add numeric data to the different columns of this series by using the set function:
 +<code java>
 +ds.set(0,1.54);
 +ds.set(1,3);
 +for(int i=2; i<10; i++){
 + ds.set(i,i+i);
 +}
 +</code>
 +
 +It is also possible to create a new row in a dataset in one line of code:
 +<code java>
 +diagram.addRow().set(0,1).set(1,2);
 +</code>
 +
 +==== Clearing ====
 +
 +A dataset is a Resource of GroIMP and therefore not removed when the simulation is reset or recompiled. In order to clear a dataset the following command can be used. 
 +<code java>
 +diagram.clear();
 +</code> 
 +
 +==== Column titles ====
 +
 +Similar to the set function it is possible to add column titles using the following command:
 +
 +<code java >
 +diagram.setColumnKey(0,"max(x)").setColumnKey(1,"max(y)").setColumnKey(2,"max(z)");
 +</code>
 +
 +
 +==== Exporting datasets ====
 +
 +It is possible to export a dataset from RGG using a Java FileWriter as shown below:
 +
 +<code java>
 +import java.io.FileWriter; 
 +public void getData(){
 + DatasetRef diagram = new DatasetRef("plot");
 + FileWriter fw = new FileWriter("/home/tim/test.csv"); 
 + diagram.export(fw);
 + fw.close();
 +}
 +</code>
 +
 +It is also possible to define the Separator that is used for the file by e.g. ''diagram.export(fw,",");''
 +And the same works as well  with a StringBuffer instead of the FileWriter.
 +
 +===== Datasets in Gui =====
 +
 +The datasets can be seen in the dataset explorer. This can be found in the main menu under Panels/Explorers/datasets. Clicking on a dataset opens a very simplistic table view where the data can be seen and also exported.
 +
 +===== Visualizing Datasets =====
 +
 +To visualize a dataset in GroIMP the chart() function is used:
 +<code java>
 + chart(diagram, XY_PLOT);
 +</code>
 +
 +in a full example like this:
 +
 +<code java>
 +module A(float len) extends Sphere(0.1)
 +{
 + {setShader(GREEN);}
 +}
 +DatasetRef diagram = new DatasetRef("plot");
 +
 +protected void init ()
 +[
 + Axiom ==> A(1);
 + {
 + diagram.setTitle("My fancy plot");
 +
 + diagram.clear();
 +     diagram.setColumnKey(0,"max(x)").setColumnKey(1,"max(y)").setColumnKey(2,"max(z)");
 + chart(diagram, XY_PLOT);
 +     
 + }
 +]
 +
 +public void run ()
 +
 +[
 + A(x) ==> F(x) [RU(30) RH(90) A(x*0.8)] [RU(-30) RH(90) A(x*0.8)];
 + {
 + diagram.addRow().set(0,max(location((*A*)).x)).set(1,max(location((*A*)).y)).set(2,max(location((*A*)).z));
 +
 + }
 +]
 +
 +</code>