Problem with "Web Viewer"

Hello, I?m searching for an expert, who can help me with chart-scripting.

I have a code, which creates 2 MarkerLines and scales the y-axis. This works very good in the preview and on the ?View Report as HTML? or ?View Report as PDF?.
My Problem is: It didn't work on the ?View Report in Web Viewer?.
It looks like the GlobalVariable is ?null?.

Code:
?
icsc.getExternalContext().getScriptable().getGlobalVariable("maximum");
?

Why does it work in 3 of 4 cases?
Has anyone an idea?

Thanks a lot for your help.

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Comments

kosta

Hello blub1.0,

I have another question:
what do you mean by: "I have a code, which creates 2 MarkerLines and scales the y-axis"?

Do you create them programmatically. How do you do that?

Regards,
Kosta

blub1.0

Hello kosta, 
 
this is my chart-script: 
 
function beforeGeneration( chart, icsc ) 
{ 
importPackage(Packages.org.eclipse.birt.chart.model.component.impl); 
importPackage(Packages.org.eclipse.birt.chart.model.data.impl); 
importPackage(Packages.org.eclipse.birt.chart.model.attribute); 
importPackage(Packages.org.eclipse.birt.chart.model.attribute.impl); 
 
var chart = icsc.getChartInstance(); 
var yAxis = chart.getAxes().get(0).getAssociatedAxes().get(0); 
var min_value = icsc.getExternalContext().getScriptable().getPersistentGlobalVariable("mini"); 
var max_value = icsc.getExternalContext().getScriptable().getPersistentGlobalVariable("maxi"); 
var max_max = icsc.getExternalContext().getScriptable().getGlobalVariable("maximum"); 
 
min_ml = MarkerLineImpl.create(yAxis, NumberDataElementImpl.create(min_value)); 
max_ml = MarkerLineImpl.create(yAxis, NumberDataElementImpl.create(max_value)); 
 
//label, color and style of the markers 
min_ml.getLabel().getCaption().setValue(" "); 
max_ml.getLabel().getCaption().setValue(" "); 
min_ml.getLineAttributes().getColor().set(0,128,0); 
max_ml.getLineAttributes().getColor().set(255,0,0); 
min_ml.getLineAttributes().setStyle(LineStyle.SOLID_LITERAL); 
max_ml.getLineAttributes().setStyle(LineStyle.SOLID_LITERAL); 
min_ml.getLineAttributes().setThickness(2); //Dicke des Balkens 
max_ml.getLineAttributes().setThickness(2); //Dicke des Balkens 
 
//scales the y-axis 
xAxis = chart.getBaseAxes()[0]; 
yAxis = chart.getOrthogonalAxes( xAxis, true)[0]; 
yscale = yAxis.getScale(); 
yscale.setMin( NumberDataElementImpl.create(0)) ; 
yscale.setMax( NumberDataElementImpl.create(max_max)); 
yAxis.setScale(yscale); 
}
 
The variables mini and maxi are values from a aggregation of a table. 
Maximum is calculated on the table-script. 
 
 
By blub1.0

blub1.0

Hello,

okay I have a solution.
I have to find out that in charts PersistentGlobalVariable work, but GlobalVariable don?t work.
Because it don?t work to write a local variable in a PersistentGlobalVariable, I writing it in a table (this.setDisplayValue(xyz)). After this I write the value of this cell in an PersistentGlobalVariable (reportContext.setPersistentGlobalVariable("maximum",this.getValue())).

This isn?t very elegant, but it works!

Thanks at all who read my question.