Identifying block/entity properties.

[AshRam98]

Hi @yanzexuan1,

First of all, really great work, I have a question on accessing the information of entities/blocks. Each block or entity has some properties that is usually displayed in AutoCAD. Is there a way to click on block elements and access these properties in your tool? I have attached an example image below.

[yanzexuan1]

Firstly, when load an dxf, set "merge" to false, otherwise, entities will be merged.

const modelCfg: ModelConfig = {
    modelId: "id_0",
    name: "sample",
    src: "http://www.abc.com/sample.dxf",
    merge: false,
}

It is not hard to get xData of entity, but in this project we din't explicitly support it.