Doubts on LinearGradient#proportional=true

[Richard Bair]

Perhaps you are being tripped up by the coordinate spaces. The rectangle is drawn at 40 in the x of it's coordinate system, and the gradient starts at 0. So the first 40px of gradient are to the left of the left edge of the rectangle. If the rect were at 0 you would see what you expect, I think. If you translate the rect vs move it you would see what you expected as well.



On Jun 8, 2012, at 7:56 AM, Tom Schindl <tom.schindl at bestsolution.at> wrote:

> here it is.
> 
> The rect I get:
> http://www.efxclipse.org/screen.png
> 
> The rect I expected:
> http://www.efxclipse.org/screen_expected.png
> 
> Tom
> 
> Am 08.06.12 16:48, schrieb Tom Schindl:
>> It looks like the image gets stripped. Let me upload it somewhere and
>> come back to you
>> 
>> Tom
>> 
>> Am 08.06.12 16:44, schrieb Pavel Safrata:
>>> Hi Tom,
>>> did you forget to attach the image or did the system strip it somewhere
>>> along the way? I executed your code and saw exactly what you expected -
>>> gradient in the left half of the rectangle, what do you see? By the way,
>>> the code uses proportional=false, unlike suggested in the description,
>>> so please try to clarify your question.
>>> Thanks,
>>> Pavel
>>> 
>>> On 8.6.2012 16:33, Tom Schindl wrote:
>>>> Hi,
>>>> 
>>>> I'm not sure if i understood proportional true wrong or I'm found a
>>>> serious bug.
>>>> 
>>>>> import java.util.ArrayList;
>>>>> import java.util.List;
>>>>> 
>>>>> import javafx.application.Application;
>>>>> import javafx.scene.Group;
>>>>> import javafx.scene.Scene;
>>>>> import javafx.scene.paint.Color;
>>>>> import javafx.scene.paint.CycleMethod;
>>>>> import javafx.scene.paint.LinearGradient;
>>>>> import javafx.scene.paint.Stop;
>>>>> import javafx.scene.shape.Rectangle;
>>>>> import javafx.stage.Stage;
>>>>> 
>>>>> public class TestGradient extends Application {
>>>>> 
>>>>>    /**
>>>>>     * @param args
>>>>>     */
>>>>>    public static void main(String[] args) {
>>>>>        launch(args);
>>>>>    }
>>>>> 
>>>>>    @Override
>>>>>    public void start(Stage primaryStage) throws Exception {
>>>>>        Group g = new Group();
>>>>>        Rectangle r = new Rectangle(40,0,90,75);
>>>>>        List<Stop>  stops = new ArrayList<Stop>();
>>>>>        stops.add(new Stop(0, Color.RED));
>>>>>        stops.add(new Stop(1, Color.BLUE));
>>>>>        LinearGradient lg = new LinearGradient(0, 0, 90, 0, false,
>>>>> CycleMethod.NO_CYCLE, stops);
>>>>>        r.setFill(lg);
>>>>>        g.getChildren().add(r);
>>>>>        Scene s = new Scene(g,200,200);
>>>>>        primaryStage.setScene(s);
>>>>>        primaryStage.show();
>>>>>    }
>>>>> 
>>>>> }
>>>> Running this code gives me an UI like shown in the attached screenshot.
>>>> Is this really the right behaviour? I'd expect red to start on the left
>>>> of the rect and end at 1/2 of the width.
>>>> 
>>>> Tom
>>>> 
>> 
>> 
> 
> 
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