calculate area by selecting specified area from polyline

[Neeha]

Hello

I am using editordemo in my project . I am opening an dxf image in editing mode.
Now i am selecting some region by using polyline.

how can i calculate polyline length, width and also area of seleted part of that image.

help me!!!!

[support]

Hello Neeha,

To calculate a width, height and area of the region bounded by a closed rectangular polyline, you can use CADPolyLine.Box.Width and CADPolyLine.Box.Height properties:

Code: Select all

CADPolyLine polyLine;
...

double rectArea = polyLine.Box.Width * polyLine.Box.Height;

Mikhail

[Neeha]

thanks for the code.


But please also tell me how and where to write code.

[support]

please also tell me how and where to write code

It depends on the logic of your application.


Mikhail

[Neeha]

Hello

I want to implement it in editor demo
where already an option "add new poly" is written .

[support]

Neeha,

The EditorDemo project uses the EntitiesCreator class which creates entities automatically and doesn't expose CADEntity derivatives during creation of entities. However, you can try to find the last added polyline by using a CADEntityCollection.FindLast method with the following predicate:

Code: Select all

Predicate<CADEntity> p = new Predicate<CADEntity>(ent => ent.EntType == EntityType.Polyline);

The FindLast method may be called in EndAddEntity method as shown below.

Code: Select all

public void EndAddEntity(bool val)
{
	if(curAddEntityType != CreatorType.Undetected)
	{
		SetAddEntityMode(curAddEntityType);
		SetEnableChecked();				
		ChangeControlState();
        
		CADEntity ent = entCreator.Image.Converter.Entities.FindLast(p);
		CADPolyLine polyline = ent as CADPolyLine;
		double rectArea = polyline.Box.Width * polyline.Box.Height;
	}
	this.detMouseDown = val;
}	

Mikhail

[Lilltina]

Hello Neeha,

To calculate a width, height and area of the region bounded by a closed rectangular polyline, you can use CADPolyLine.Box.Width and CADPolyLine.Box.Height properties:

Code: Select all

CADPolyLine polyLine;
...

double rectArea = polyLine.Box.Width * polyLine.Box.Height;

Mikhail

Thank you Mikhail this was a pice of cake thanks to you!

Testa dagens casino nu för att spela
Bästa sidorna i Sverige hittar du på Sweden casino med bäst bonusar.
Spela på alla casino på nätet och vinn stort!
Letar du efter ett casino utan konto? Läs mer om hur du gör det här.
Spela på valfritt casino kortspel.

[support]

Lilltina,

You are welcome.


Mikhail

[Holmes2499]

thanks for the code.
Gclub