Re: [Geotools-gt2-users] Quickstart instructions - notes

[Jody G. <jod...@gm...>]

On 27/09/2009, at 4:23 AM, Tom Williamson wrote:

> I tried the new Quickstart instructions and they look great!   Two  
> really simple, newbie-type things (me being the newbie) and a stack  
> trace from an error inside the Quickstart app:
>
> I did a cut-and-paste to get the text from the pom.xml file in the  
> PDF doc into my Netbeans pom.xml.   Since the document had the text  
> split across two pages, I accidentally picked up the page footer and  
> date and pasted them into my pom.xml file.

Thanks - sorted that out :-)
>
> I suggest adding something like this to the section about changing  
> the pom.xml file:
> "If, after editing the pom.xml file, your project name changes from  
> "Example" to "Badly formed Maven project", this means you have  
> changed the pom.xml to something Maven doesn't understand.   If you  
> were cutting and pasting text, you most likely pasted the text in  
> the wrong place and this threw Maven off.   Carefully examine the  
> pom.xml file and make sure all the tags line up.  Using the Source/ 
> Format menu option will auto-format your pom.xml file for you and  
> should help you find the missing, extra or out-of-place tags."

Good suggestion - I spent some time stuck there myself (since I am new  
to netbeans).

>
> I ran the Quickstart.java from the PDF, and it did load and display  
> the .shp file (this is further than I've gotten before!  I'm  
> excited!)   However, when I tried to click the "+" and zoom in on  
> the map I got this error:

I was not able to reproduce this problem. One thing I have not been  
able to get to work is the zoom out button.
>
> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
>         at org.geotools.swing.JMapPane.clearBaseImage(JMapPane.java: 
> 790)
>         at org.geotools.swing.JMapPane.paintComponent(JMapPane.java: 
> 658)
>         at javax.swing.JComponent.paint(JComponent.java:1029)


Based on your stack trace I have added a couple null checks - which I  
hope Michael can review next time he updates.

Thanks for your help Tom! I have made a note thanking you on the  
welcome page. If you are keen for more I will send email to the user  
list when the next workbook is ready later today.

If anyone else would like to have a go, or if there is a volunteer to  
try the eclipse quickstart that needs a sanity check;, drop me an  
email and I can send you a PDF.

Jody