Dwg comparison through design automation - autodesk-forge

Question

I would like to know if it is possible, and if yes, how can I achieve dwg comparison through the design automation? I there a way to create a comparison activity accepting 2 dwg in input, and post a boolean as output?

Answer 1

Yes you can create an activity accepting two drawings.
Following activity JSON uses an in-built compare and output the result diff drawing.
Sample Activity Json
{
"HostApplication": "",
"RequiredEngineVersion": "23.0",
"Parameters": {
"InputParameters": [
{
"Name": "HostDwg",
"LocalFileName": "$(HostDwg)"
},
{
"Name": "ToCompareWith",
"LocalFileName": "ToCompareWith.dwg"
}
],
"OutputParameters": [
{
"Name": "Result",
"LocalFileName": "output.dwg"
}
]
},
"Instruction": {
"CommandLineParameters": null,
"Script": "COMPAREINPLACE\nON\n-COMPARE\n\nToCompareWith.dwg\n_SAVEAS\n\noutput.dwg\n"
},
"Id": "FPDCompare"
}
Workitem Json
{
"Arguments": {
"InputArguments": [
{
"Resource": "https://madhukar-fda.s3.us-west-2.amazonaws.com/Kitchens1.dwg",
"Name": "HostDwg"
},
{
"Resource": "https://madhukar-fda.s3.us-west-2.amazonaws.com/Kitchens2.dwg",
"Name": "ToCompareWith"
}
],
"OutputArguments": [
{
"Name": "Result",
"HttpVerb": "POST"
}
]
},
"ActivityId": "FPDCompare"
}
If you are using your own custom compare logic, you can output the
results to txt file or json file.
Activity Json
{
"HostApplication": "",
"RequiredEngineVersion": "23.0",
"Parameters": {
"InputParameters": [
{
"Name": "HostDwg",
"LocalFileName": "$(HostDwg)"
},
{
"Name": "ToCompareWith",
"LocalFileName": "ToCompareWith.dwg"
}
],
"OutputParameters": [
{
"Name": "Result",
"LocalFileName": "output.txt"
}
]
},
"Instruction": {
"CommandLineParameters": null,
"Script": "ISDWGSIMILAR\nToCompareWith.dwg\n"
},
"AppPackages":["Compare"],
"Version": 1,
"Id": "Compare"
}
Workitem Json
{
"Arguments": {
"InputArguments": [
{
"Resource":"https://madhukar-fda.s3.us-west-2.amazonaws.com/Kitchens.dwg",
"Name": "HostDwg"
},
{
"Resource":"https://madhukar-fda.s3.us-west-2.amazonaws.com/Kitchens1.dwg",
"Name": "ToCompareWith"
}
],
"OutputArguments": [
{
"Name": "Result",
"HttpVerb": "POST"
}
]
},
"ActivityId": "Compare"
}
Note: In the script argument - "ISDWGSIMILAR" is a custom command where you will process two drawings, the first one will be current and second one is the drawing to which you are willing compare [ToCompareWith]
Custom NET Command
[CommandMethod("FDACOMMANDS", "ISDWGSIMILAR", CommandFlags.Transparent)]
public static void CompareDrawing()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var promptResult = ed.GetString("Select Drawing To Compare With");
if (promptResult.Status != PromptStatus.OK) return;
var drawingToCompareWith = promptResult.StringResult;
ed = Application.DocumentManager.MdiActiveDocument.Editor;
using (OpenCloseTransaction o = new OpenCloseTransaction())
{
/*
{
Here your logic code to compare two drawings
}
*/
/*output.txt / json is pushed to your cloud storage as provided in workitem json*/
using (var writer = File.CreateText("output.txt"))
{
if (b != null) /*b value is result of your compare*/
{
writer.WriteLine("TRUE Drawings are same");
}
else writer.WriteLine("FALSE Drawings aren't same");
}
}
}