Re: [udig-devel] Invalidate a draw command

[Jody Garnett <jody.garnett@xxxxxxxxx>]

You will need to maintain a list of all the draw commands you added;
in order to make them non active when you are done. Please note that
you will get better performance by having a single draw command (of
your own design) which you modify to ask it to draw multiple lines...

Jody

On Fri, May 1, 2009 at 4:22 PM, karthik shravanam
<nobody@xxxxxxxxxxxxxxxxxxxxx> wrote:
> I have drawn multiple lines on the map to calculate the distance and on the
> Double Click i want to erase them and start fresh.
> If i use drawcommand.setvalid(false) and after that i repaint the page only
> the last line is getting erased and if i use array of com mands for drawing
> the lines and then i try to delete the lines on double click using the for
> loop, the for loop does not seem to work. i am pasting the code below:
> @Override
>     protected void onMouseDoubleClicked(MapMouseEvent e ) {
>         System.out.println("inside double clicked" + pointsCount);
>         for(int  i=0; i < pointsCount; i++)
>         {
>          System.out.println("inside double clicked" + i);
>          command[i].setValid(false);
>
>         }
>         getContext().getViewportPane().repaint();
>         getContext().getSelectedLayer().refresh(null);
>
>
>     }
> Can you please give me your suggestions as to how i can solve this.
> Thanks
>
> On Thu, Apr 30, 2009 at 12:56 AM, Jesse Eichar <jesse.eichar@xxxxxxxxxxxxxx>
> wrote:
>>
>> huh.  I got caught by a change of subject.
>>
>> On Thu, Apr 30, 2009 at 5:59 AM, Jody Garnett <jody.garnett@xxxxxxxxx>
>> wrote:
>>>
>>> Please invalidate a the draw command used to draw the lin in response
>>> to tool feedback.
>>>
>>> The draw commands are kept in a queue and always drawn; if you set the
>>> draw command to invald (ie command.setActive( false) ) it will be
>>> removed from the queue.
>>>
>>> See http://udig.refractions.net/confluence/display/DEV/3+Draw+Command
>>>
>>> I have added your question to the page to help the next person
>>> Jody
>>>
>>>
>>> On Thu, Apr 30, 2009 at 1:13 PM, Unkown
>>> <nobody@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>> > Hi All,
>>> > I am working on a plug-in feature for the uDig,i have a question
>>> > regarding
>>> > as to how to clear the lines when we double click  on the mouse, when
>>> > we
>>> > have selected a portion of the map and want to start over from a
>>> > different
>>> > point instead of the previous point.
>>> > I am trying to refresh the map ,clear the lines and then repaint. Can
>>> > some
>>> > one please tell me if i am doing it the correct way because i am having
>>> > some
>>> > problem with it and can't seem to get it working.
>>> > I was wondering if clearing the lines drawn can be done in the same
>>> > layer or
>>> > do we have to add a different layer on top of it?
>>> > Can some one please suggest.
>>> > It would be of great help if you can point me to an example for a Mouse
>>> > DoubleClickEvent procedure to clear the lines.
>>> >
>>> > Thanks for the help in advance.
>>> > Thanks,
>>> > karthik.
>>> > _______________________________________________
>>> > User-friendly Desktop Internet GIS (uDig)
>>> > http://udig.refractions.net
>>> > http://lists.refractions.net/mailman/listinfo/udig-devel
>>> >
>>> >
>>> _______________________________________________
>>> User-friendly Desktop Internet GIS (uDig)
>>> http://udig.refractions.net
>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>
>>
>> _______________________________________________
>> User-friendly Desktop Internet GIS (uDig)
>> http://udig.refractions.net
>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>
>
>
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel
>
>