Error on deleting a shape polygone in TMapSeries

[odissey1]

Hi,
I am trying to delete a Shape in TMapSeries in code like (either one)

SeriesMap.Shapes.Free;
SeriesMap.Shapes.Polygon.Free;

which returns Error in runtime.
Manual deleting (select+delete kbd button) gives error in Tee8new either.

Is there any way to delete a certain shape in TMapSeries
(like SeriesMap.Delete)?

regards,
odissey1

[Narcís]

Hi odissey1,

Yes, you can use Delete method, for example:

Code: Select all

  Series1.Delete(0);

Or deleting all polygons:

Code: Select all

  for i := Series1.Count-1 downto 0 do
    Series1.Delete(i);

Which is the equivalent of this:

Code: Select all

  Series1.Clear;

[odissey1]

Hi odissey1,

Yes, you can use Delete method, for example:

Code: Select all

  Series1.Delete(0);

-I am afraid not. At least not in my TeeChart v.7.12. Compiler say: 'There is no overload version of Series1.Delete(0)';

But something wrong in TeeChart 8.x also. Try to open Tee8new.exe -> MapGIS series -> Edit -> Shapes. Now select any shape with a mouse. Hit 'Delete' button on keyboard. You will get an error message.

[odissey1]

But something wrong in TeeChart 8.x also. Try to open Tee8new.exe -> MapGIS series -> Edit -> Shapes. Now select any shape with a mouse. Hit 'Delete' button on keyboard. You will get an error message.

I posted a screenshot on Attachments forum

[Narcís]

Hi odissey1,

-I am afraid not. At least not in my TeeChart v.7.12. Compiler say: 'There is no overload version of Series1.Delete(0)';

This works fine for me here using v8.04

But something wrong in TeeChart 8.x also. Try to open Tee8new.exe -> MapGIS series -> Edit -> Shapes. Now select any shape with a mouse. Hit 'Delete' button on keyboard. You will get an error message.

I could reproduce this and added the issue to the defect list (TV52013644) to be investigated.

[sicorspa]

don't know if it's correct but this also works like delete i think

Series1.Shapes.Points.Delete(0,Series1.Shapes.Points.Count - 1,False);

am I right?

[Pep]

Hi,

-I am afraid not. At least not in my TeeChart v.7.12. Compiler say: 'There is no overload version of Series1.Delete(0)';

It's strange, I've just checked the latest TeeChart Pro VCL v7 sources and you should be able to use the Delete method, it exists since the earlier versions. You could check if TeeChart is correctly installed.

don't know if it's correct but this also works like delete i think

Series1.Shapes.Points.Delete(0,Series1.Shapes.Points.Count - 1,False);

am I right? Confused

The Series.Delete(x) method deletes a specific shape from Map Series, and the method you're using Series.Shapes[x].Delete(start,end,removegaps) would remove all points from shape but wont remove (free) the shape created. it will remain there as a data point. The correct method to remove completely a specific shape is the Delete(x).

[sicorspa]

many thanks, I'm just using delete(x) but before tried the points.delete.

Howether thanks because it's always better to know the exact function of a procedure/function