CADSoftTools

Posted: **09 Jun 2021, 17:45**

i can access all layers and its properties but the next step is that i need to read all entities in each layer such as lines and texts in a dwg file
can't find such a thing in the documentation, any help please?

here is my code

Code: Select all

            CADImage vDrawing = CADImage.CreateImageByExtension(filename);
            vDrawing.LoadFromFile(filename);
 
            List<string> layerName = new List<string>();
            List<bool> layerVisible = new List<bool>();
            List<System.Drawing.Color> layerColor = new List<System.Drawing.Color>();
            List<bool> layerForzen = new List<bool>();
            List<string> currentLayer = new List<string>();
            for (int i = 0; i < vDrawing.LayersCount; i++)
            {                
                layerName.Add(vDrawing.GetLayerName(i));
                layerVisible.Add(vDrawing.GetLayerVisible(i));
                layerColor.Add(vDrawing.GetLayerColor(i));
                layerForzen.Add(vDrawing.GetLayerFreeze(i));
            }

Posted: **10 Jun 2021, 21:50**

Hello,

Let's say, you have a list of layer names (List<string>) and you need to read all the lines and texts on these layers and add them to a list of CADEntity objects (List<CADEntity>).

Code: Select all

List<string> layerNames = new List<string>();
...

List<CADEntity> entities = new List<CADEntity>();

To filter out entities of a certain type (Line and Text in this case), define a Predicate delegate with lambda expression:

Code: Select all

Predicate<CADEntity> entitiesByType = ent => (ent.EntType == EntityType.Line) || (ent.EntType == EntityType.Text);

Then iterate over layer names using the ForEach method of the List<T>, retrieving from CADConverter.Entities collection CADEntity objects that have a current layer name and entity type defined by the predicate entitiesByType and adding the retrieved CADEntity objects to the entities list:

Code: Select all

layerNames.ForEach(name => { entities.AddRange(vDrawing.Converter.Entities.FindAll(ent => ent.Layer.Name == name).FindAll(entitiesByType)); });

Mikhail

CADSoftTools

iterate over each layer entities c#

iterate over each layer entities c#

Re: iterate over each layer entities c#