This is already quite helpful, thank you!
I will try and see if displayLineSweptSpheres solves the issue.
I will post the solution when I've found it!
Cheers,
Haichao

I created a ticket.
thanks for your answer!

Hello, you get a key in two ways:

you don't create an account, and you use the one indicated on https://www.samson-connect.net: try@samson-connect.net and 38540-DEBE1-44187-A67B7-08471 you create an account, and you use your email address and the key you receive at that email address when you download the installer.

You can also have the key sent to you in the My SAMSON / Account page on SAMSON Connect:
0_1530614694842_47a485ff-97ee-4db0-8ad3-044b51b2ce42-image.png

SAMSON and many SAMSON Elements are free, yes. Note that you need to create an account if you want to choose which SAMSON Elements you add to your SAMSON.

Hope this helps,

Stephane

ok great!

ok great!

Thank you!
I will try it with this.

Yes, I meant SBStructuralGroup :)

Thank you! Using the GetClass and GetElementUUID methods is enough for my purposes :)

Another possibility could be to start from a selenium crystal and "sculpt it".

Get a CIF file for a crystal you like at http://rruff.geo.arizona.edu/AMS/minerals/Selenium. You will need the CIF importer in the Crystal Creator SAMSON Element (https://samson-connect.net/app/main?key=element&uuid=58a75a78-abbc-2c60-6214-e668b5c45a0d). In this example, I'm using this CIF file: http://rruff.geo.arizona.edu/AMS/download.php?id=10390.cif&down=cif. When you import the CIF file, use a big enough number of cells, for example 10 in each direction:
0_1528385266091_08798f27-b8d7-4139-8e87-97f67c07b32f-image.png
This will create 32000 atoms:
0_1528385319471_d2cb857d-3ff4-4d2f-ba1b-9f52e0170c30-image.png Select one atom around the center of the crystal, with the selection editor 0_1528385357394_dd40b047-a00b-4346-8801-e0193268107e-image.png:
0_1528385397414_315ea865-a94f-4f62-a4be-8348071ee4e0-image.png
(look around to make sure the selected atom is approximately in the center) Open the Find window (CTRL / CMD + F or Selection / Find...):
0_1528385478242_d43a3244-962b-4bcd-94f1-4ea3c052fe58-image.png Enter the following search string: n.t a w 20A of n.s in the box named "Selection string" and press the OK button. This is the short form of "node.type atom within 20 Angstrom of node.selected", i.e. all atoms within 20A of the current selection. This selects atoms in a 20A radius sphere:
0_1528385607949_e9280e37-b54c-4560-9e6a-133282b1f0bc-image.png Open the Find window again, to invert the selection with the following NSL expression: n.t a and !n.s (in the box named "Selection string", then press OK). This means "all nodes that are atoms and that are not selected". This selects everything outside the nanoparticle:
0_1528385806987_1.png Press the "delete" key to erase the selected atoms, or click on the "Current selection" widget and select "Erase selection":
0_1528385902405_a3c8d30d-c47e-41ed-a5da-5d9a307eb47c-image.png
This leaves the particle alone:
0_1528385954376_7e5484ab-1bb4-44b0-8d96-f6534eb60b9d-image.png In the Document view, select the Property model called "Selenium crystal" and delete it, i.e. go from
0_1528386023100_d66cd933-e574-4c80-bbc9-35c1820851ee-image.png
to
0_1528386038473_4a83e287-d616-4cbb-ad50-695cc3fd846d-image.png You now have a spherical selenium nanoparticle with a 20A radius. Save it to a SAMSON file format or export it to a PDB file. Here is the SAMSON version: 0_1528386144295_Selenium nanoparticle.sam

Hope this helps,

Stephane

Hello, here is a capped nanotube for SAMSON 0.7.0.

Hope this helps.

Stephane

0_1528279139422_Capped nanotube.png

0_1528279059922_Capped nanotube.sam

First of all I have to thank you for the quick response. Funnily, I thought of using const_cast on the matrix pointer beforehand but considered it as too "hacky".
There should be several possibilites how one could introduce this into the API:

Each camera gets a state that determines whether it implements a symmetric or asymmetric projection including two methods that query and set the state. Then, an additonal method (possibly like SetPlanesAsymmetric(float left, float right, float top, float bottom)) could be used to transfer the wanted plane values to SAMSON. This approach would leave the old API intact, if the symmetric projection is the standard state. Derive a class like SBDAsymmetricDocumentCamera from the currently available SBDDocumentCamera, overriding all methods concerning the projection matrix. This is probably the least favourable alternative, although the old API would still be valid. The camera gets two additional methods SetValuesSymmetric(float aspect, float fovy, float zNear, float zFar) and SetValuesAsymmetric(float left, float right, float top, float bottom, float zNear, float zFar). Then, the GetProjectionMatrix() and GetProjectionMatrixTranspose() methods would have to be changed to take an additional boolean input parameter determining which kind of matrix is wanted. This would break the old API and I am not sure how this would propagate to the convenience display methods like SAMSON::displayCylinders(...).

Unfortunately I do not know which of these possibilities (and I probably missed some additional ones) would fit best into your way of writing SAMSON.

Best,
Karsten

Thank you so much sir....It really helped.

yes you are right both ways work fine.
I had a bug I was unaware of in a different position.

thx!

@stephane-redon I think it can be nice for the developers to be able to register more actions in the context menu. But it can also make the context menu too crowded. Perhaps, you can make something in the Preferences so that the users can select to add which actions to show in the context menu.

Actually, I am developing an app to convert a list of conformations to a path and vice versa for my work.
So I was thinking it can be useful to add an action in the context menu so that after selecting a list of conformations in the Document View, I would right-click and choose "Convert to Path". Do you have any suggestion to do it for this case?

In case someone else is in the same situation. I just finished porting our plugin to 0.7.0 and the only changes I had to make were in SAMSON::getProxy (the arguments have changed), and the call functions of the proxies (arguments of SBValue type used to be pointers, now they are passed by reference).

We have still to test it to make sure all functionality is working, but so far it seems that was it.

Regards,

Elisa

Actually I didn't explain well the case where the raise didn't worked for me as I expected. When you have two windows, with the first one locked and the second unlocked. If the raise function is called for the second unlocked window, it doesn't go on top of the first locked window.

For those who might interest, I found a simple solution. You need to temporarily lock the window, call the raise function then unlock the window.

Thank you Stephane for your quick answer !
Yassine

Hi @Karsten ,

For every node, you create you need to invoke create function, and then if you want it to appear in the DataGraph this node needs to be added to a parent node:

auto camcopy = SAMSON::getActiveCamera()->clone(); // clone the camera camcopy->create(); // create the node document->addChild(camcopy); // add the created camera into the active document /* ... some modifications of the camcopy */ SAMSON::getActiveDocument()->setActiveCamera(camcopy); // set the active camera

Thanks.
It helps.

SBQuantity::radian radianValue(1.5); SBQuantity::degree degreeValue = radianValue * SBConstant::RadToDeg;

Good idea, it will be in 0.8.

Yes thanks. That's what I was looking for.

Hi Khoa, yes, it's always better to create nodes on the heap instead of the stack (i.e. with new). Therefore, you should use a SAMSON pointer (SBPointer) to hold it and destroy the node automatically when the variable gets out of scope.