Thanks Larry. I'll try that.
The Sunburned Surveyor
On 4/12/07, Larry Becker <[EMAIL PROTECTED]> wrote:
In Eclipse, just highlight the reference you are interested in (in this
case render), right click and choose References->Project. This will display
all of the places in the project that reference your highlighted text in a
Search panel that you can arrow through. It understands Java, so it is much
better than simply doing a word search.
Larry
On 4/12/07, Sunburned Surveyor <[EMAIL PROTECTED]> wrote:
> O.K.
>
> I think I've narrowed down my NullPointerException problem, but I still
> need some help with a complete fix. I am able to properly render a layer
> when loading a new dataset in OpenJUMP with my pluggable rendering system
> enabled.
>
> However, when I try to zoom or pan the data in the LayerViewPanel I get
> a NullPointerException. I also get this exception when I start OpenJUMP and
> an emptyLayerViewPanel is displayed.
>
> By default my pluggable rendering system only supports rendering
> com.vividsolutions.jump.workbench.model.Layer objects and
> com.vividsolutions.jump.model.WMSLayer objects. I thought I only needed
> to include renderers for these two classes by default. I'm beginning to
> suspect that another object is passed to the render() method of the
> RenderingManager object. This would explain the NullPointerException. My
> pluggable rendering system would return null for any object that was passed
> to the RenderingManager.render() method that wasn't a Layer object or
> WMSLayer object.
>
> What other types of objects are passed to the RenderingManager.render()
> method? I almost think we are passing a reference to the LayerViewPanel
> itself. What else would need to get painted when OpenJUMP starts and an
> empty LayerViewPanel is displayed?
>
> This problem has me really stumped. I appreciate everyone's patience
> with my efforts on this. I think the benefits of a pluggable rendering
> system will be worth it.
>
> If you can tell me what other classes might get passed to the
> RenderingManager.render() method when OpenJUMP first loads, or when a
> viewport is panned, I would appreciate it. Or, tell me how I could find out.
> :]
>
> The Sunburned Surveyor
>
>
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