@andreykushnir325 wrote:
Hello!
How can I change material’s gamma from python script?
Thank you!
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Change gamma from python
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BlockEdit directly to a nested instance
@spb wrote:
Is there a way to start BlockEdit directly to a nested instance via RhinoCommon?
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rs.Command in class? [Solved]
@onrender wrote:
Hi, I am working on a simple script in python that will produce a slab and I got a strange result when I put the
rs.Command("_Dir SelID " + str(surface2)+ " _Enter Flip _Enter ") line
in the class.
The script could not reach the surface2 GUID but gives a partial multi rows message with errors:
First row is also strange: as sais “Wall thickness: _Dir”. Wall thickness occurs in the main object only when I give the input, but not in the class.
[7ce0e3e7-6b89-43ee-8cb6-f7cc3759e1d9]>] is actually surface2 that I want to process.
Wall thickness: _Dir Select objects for direction display: SelID[<System.Guid Unknown command: SelID[<System.Guid Select objects for direction display: object Unknown command: object Select objects for direction display: at Unknown command: at Select objects for direction display: 0x000000000000005D Unknown command: 0x000000000000005D Select objects for direction display: [7ce0e3e7-6b89-43ee-8cb6-f7cc3759e1d9]>]_Enter Unknown command: [7ce0e3e7-6b89-43ee-8cb6-f7cc3759e1d9]>]_Enter Select objects for direction display: Flip Select objects for direction display: _Enter
Posts: 4
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Debugging Eto Forms in separate project
@timkado wrote:
Hi - I am working on an EtoFroms UI for a Rhino plugin. I do the majority of debugging outside of Rhino to avoid the load times. I have a separate project set up that just displays the forms and references Rhino’s Eto and Eto Wpf dlls.
With SR19 I am getting the following error:
System.IO.FileNotFoundException: ‘Could not load file or assembly ‘Eto, Version=2.5.0.0, Culture=neutral, PublicKeyToken=552281e97c755530’ or one of its dependencies. The system cannot find the file specified.’
I am not quite sure what is causing this. Any help appreciated.
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Developer Docs page broken
@jeremy5 wrote:
Hi McNeelers,
Images have gone AWOL on the ‘Node in Code from Python’ page at https://developer.rhino3d.com/guides/rhinopython/ghpython-call-components/
Regards
Jeremy
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Run a command within a headless RhinoDoc
@pgs wrote:
By using Rhino inside CPython I have created a new headless RhinoDoc. Do anyone know how to execute a command within this RhinoDoc? For example something simple like ‘_-Line 0,0,0 10,0,0’?
Pål
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How to speed up copying mesh faces in C++ API vs Python + Rhinocommon
@Terry_Chappell wrote:
I am trying to improve the performance of my Python script by moving the Python code below, which creates several meshes, into a C++ API DLL.
faces = meshGeo.Faces # Make .NET List of all faces to use in AddFaces below. facesL = List[MeshFace](nvert) # Add all faces from unified mesh to .NET List for quick access using GetRange. facesL.AddRange(faces) lower_index = 0 # Make duplicate mesh without faces. dmesh = meshGeo.DuplicateMesh() dmesh.Faces.Clear() last_index = upper_face_index[-1][0] for upper_index, name in upper_face_index: # If not last mesh, duplicate the no-faces mesh. if upper_index != last_index: next_meshGeo = dmesh.DuplicateMesh() # Use dmesh when making the last mesh. else: next_meshGeo = dmesh # Copy over the faces used in this mesh. next_meshGeo.Faces.AddFaces(facesL.GetRange(lower_index, upper_index - lower_index)) # Use upper_index for lower limit in next range. lower_index = upper_index # Compact the mesh to remove unused vertices, colors, textures and normals. next_meshGeo.Compact() # Add mesh to document. doc.Objects.AddMesh(next_meshGeo)The corresponding C++ API code is:
DLLEXPORT void make_meshes(uint32_t doc_serial_number, uint32_t mesh_serial_number, uint32_t nmi, int32_t* upper_face_indices, uint32_t* mesh_serial_numbers) { // Get doc from RuntimeSerialNumber passed as uint_32_t. CRhinoDoc* pDoc = CRhinoDoc::FromRuntimeSerialNumber(doc_serial_number); const CRhinoObject* obj = pDoc->LookupObjectByRuntimeSerialNumber(mesh_serial_number); const ON_Mesh* mesh = ON_Mesh::Cast(obj->Geometry()); // Make new meshes. int lower_index = 0; // Duplicate mesh. ON_Mesh dmesh(*mesh); // Remove all faces. dmesh.DeleteComponent(ON_COMPONENT_INDEX(ON_COMPONENT_INDEX::mesh_face, 14)); // Get index of last face. int32_t last_index = upper_face_indices[nmi-1]; for (int i = 0; i < nmi; ++i) { // Get upper face index for this mesh. int upper_index = upper_face_indices[i]; // Find number of faces in this mesh. int num = upper_index - lower_index; // If not last mesh, duplicate the no-faces mesh. if (upper_index != last_index) { // Duplicate no-faces mesh. ON_Mesh new_mesh(dmesh); // Set capacity of new mesh. Without this, face copying is 30% slower. new_mesh.m_F.SetCapacity(num); // Copy over faces used in this mesh. for (int j = 0; j < num; ++j) { new_mesh.m_F[j] = mesh->m_F[lower_index + j]; } new_mesh.Compact(); // Add new mesh to Rhino document. CRhinoMeshObject* meshObject = pDoc->AddMeshObject(new_mesh); mesh_serial_numbers[i] = meshObject ? meshObject->RuntimeSerialNumber() : 0; // Use upper_index for lower limit in next range. lower_index = upper_index; }The slow C++ part is where the old faces are copied into the new_mesh:
for (int j = 0; j < num; ++j) { new_mesh.m_F[j] = mesh->m_F[lower_index + j]; }In Python this is done using the higher performance .NET List instead of a Python list:
next_meshGeo.Faces.AddFaces(facesL.GetRange(lower_index,upper_index-lower_index))The Python+.NET+Rhinocommon code is 50% faster. Is there a way to do this faster in the C++ API?
I have moved several blocks of Python code that talk to Rhino into a C++ API DLL and seen significant speed up. But not in this case. Is it simply that a .NET List is faster than a C++ API ON_SimpleArray for copy operations? Or is the Rhinocommon
meshGeo.Faces.AddFaces(IEnumerable)procedure faster than looping thru:new_mesh.m_F[i] = mesh->m_F[lower_index+j];. Since only a subset of the faces are being copied, I do not see a way to use the possibly more efficient C++ option of:
new_mesh.m_F.Append(num, mesh->m_F.Array())to perform the copy.Regards,
Terry.
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Rhino3D creators
@reuben.alfred wrote:
Rhino3D creators have got almost everything I have looked into, from a developer’s perspective, right!!
A clean framework, good documentation, and samples!
Samples should only have the minimum number of lines required to illustrate a concept. The R3D samples are just that!
Well done guys and a big thank you!
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The method AddRhinoObject with param CustomCurveObject is missing
@lionpeloux wrote:
I am working on custom objects.
I think the following method is missing :ObjectTable.AddRhinoObject(CustomCurveObject)
Can you confirm that ? And if true add it to the next update ?
ThanksBlockquote
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Hiding R3D UI Elements
@reuben.alfred wrote:
Is it possible to hide any commands and UI elements from Rhino3D?
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Automatic Seam positioning
@miquel_valverde wrote:
Hello,
When I perform a Sweep1 operation, rhino lets you specify seam positions of the two profiles: Natural or Automatic.
I’m wondering how does the Automatic Seam position actually work internally.Thanks if someone can provide information on this.
Miquel
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Delete Group Items of ComboBox in Rhino
@bram.kohlen wrote:
Hello,
I am working on a plug in for Rhino. So far I have, among other things, created a RhinoOptionsControl and put a combo box (CRhinoUiOptionsListCtrlGroupComboBox) in it. I have added some items to it and all seems to work well. Now I need to dynamically add and delete items to the combo box, however I have found no way yet to remove items from it. Is there any way to do this?
So far I have tried deleting items using classes of the CComboBox parent class which does not work and rebuilding the entire GUI when something changes which is quite slow.
Is there any way to do this? Thank you in advance.
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Parsing XML in GH Python Script Editor?
@robe5177 wrote:
Tried to implement this in R5: https://docs.python.org/2/library/xml.etree.elementtree.html
to read and process http://www.canals.ny.gov/xml/liftbridges.xml
Code would be:
import xml.etree.ElementTree as ET
tree = ET.parse(‘country_data.xml’)
root = tree.getroot()error: 1. Solution exception:expected str, got DataTree[object]
then tried:
from xml.etree import ElementTree # part of python distribution
from elementtree import SimpleXMLTreeBuilder # part of your codebase
ElementTree.XMLTreeBuilder = SimpleXMLTreeBuilder.TreeBuilderwith this error:
- Solution exception:No module named elementtree
gHowl has an xml parser to obtain the info, challenge is breaking it up into usable formats.
Referred to this example: https://discourse.mcneel.com/t/access-xml-data/1346/10
Wrote ths with y being the xml file path:
filename = y
xmldoc = System.Xml.XmlDocument()
xmldoc.Load(filename)
items = xmldoc.SelectNodes(“liftbridges/mile/”)
for item in items:
print item.InnerTextNot sure on best way to access it…
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Eto: pass mouse wheel event from GridView to parent Scrollable
@Jon wrote:
Hello Eto experts,
I have a GridView nested in a Scrollable control. By default, when the GridView contains the cursor, it handles mouse-wheel events. That is, it blocks its parent container from scrolling. Is there a way to prevent this? I want the parent to scroll with the mouse wheel, never the grid.
Thanks,
Jon
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Panel generator bug
@daniel.depoe wrote:
Hello,
Please see C# command, created as part of the Programming Architecture C# plugin course I’m following.
The command is meant to prompt the user to select 4 points, then 20 panels are distributed at random angles, marked with text dots, and a parent (and 2 sublayers) are meant to be generated. I’ve done my best to go through the videos again, but I cant’ find the problem. I had the command working fine, but now it’s only generating the parent layer “L” and is exiting the command.
Any help would be appreciated.
Thanks,
Dan
Posts: 4
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Automatic Seam positioning
@miquel_valverde wrote:
Hello,
When I perform a Sweep1 operation, rhino lets you specify seam positions of the two profiles: Natural or Automatic.
I’m wondering how does the Automatic Seam position actually work internally.Thanks if someone can provide information on this.
Miquel
Posts: 2
Participants: 2
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Is RhinoCommon still Open Source?
@Goswin wrote:
Is RhinoCommon still Open Source?
It was for Rhino 5: https://github.com/mcneel/rhinocommon
(I know, most of it is a wrapper around the native dlls.
But it would still be helpful to be able to read the source.)
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Add geometry to list
@j.deboer wrote:
Hi All,
For a project, I want to add grasshopper rectangles after each click on the button in my user interface (Blue circle). Now, with a loop I can add multiple rectangles to a list in a while loop, until the user puts it to stop by typing “N” (in green).
However, this program only shows all rectangles after the loop has stopped. Is there also a way to create a rectangle at each click on the button, and after the python component add this new rectangle to a list of already created ones?
Hope to hear from you, thanks for your help!
JS
Code:
sc.doc = ghdoc corridors = [] stop = False while stop == False: plane = rs.WorldXYPlane() Rhino.RhinoApp.ReleaseMouseCapture() x1 = rs.GetPoint("Select first point of corridor") print(x1) # Tip: print(...) x2 = rs.GetPoint("Select second point of corridor") print(x2) Rhino.RhinoApp.ReleaseMouseCapture() rs.Redraw() corridors.append(rs.AddRectangle(plane,x1,x2)) more_corridors = rs.GetString("more corridors? (if yes type 'Y', if no type 'N')") if more_corridors == 'Y' or more_corridors == 'y': continue else: stop = True
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Programmatically created material doesn't show up
@aske wrote:
The example https://developer.rhino3d.com/samples/rhinocommon/add-material/ shows how to programmatically create materials. It works, as-is, however if you omit assigning the material to the sphere, it doesn’t work (on Mac, haven’t tried Windows). The material never shows up in the materials list. The material is added to the table, so I would expect it to stay there until it’s removed/deleted. Did I miss something in how materials work in Rhino?
partial class Examples { public static Rhino.Commands.Result AddMaterial(Rhino.RhinoDoc doc) { // materials are stored in the document's material table int index = doc.Materials.Add(); Rhino.DocObjects.Material mat = doc.Materials[index]; mat.DiffuseColor = System.Drawing.Color.Chocolate; mat.SpecularColor = System.Drawing.Color.CadetBlue; mat.CommitChanges(); // set up object attributes to say they use a specific material // Rhino.Geometry.Sphere sp = new Rhino.Geometry.Sphere(Rhino.Geometry.Plane.WorldXY, 5); // Rhino.DocObjects.ObjectAttributes attr = new Rhino.DocObjects.ObjectAttributes(); // attr.MaterialIndex = index; // attr.MaterialSource = Rhino.DocObjects.ObjectMaterialSource.MaterialFromObject; // doc.Objects.AddSphere(sp, attr); // add a sphere without the material attributes set // sp.Center = new Rhino.Geometry.Point3d(10, 10, 0); // doc.Objects.AddSphere(sp); doc.Views.Redraw(); return Rhino.Commands.Result.Success; } }
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Replace Gumball
@reuben.alfred wrote:
Is it possible to override the gumball with an alternative one or at least to align the rotation arcs with their respective axes?
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