How to get node id from coordinates?

Altair Forum User

Hi All,

 

I have x, y ,z coordinates  and I have  system ID also.

Eg: {0 0 25} and system ID :658001

Suppose, a node is present in the model at the above location, How to get the node ID using HM APIs?

Note :hm_closest node is not working for me.

 

Regards

Gopal

tinh

Hi

sure, hm_getclosestnode is not working with local coordinate, you have to provide global coordinate

maybe, there is some commands to calculate global coordinate, please search them

below I will create a node at that position, and retrieve its global coordinate to provide to hm_getclosestnode

*createnode 0 0 25 658001 ; #create a node at the coordinate

set NodeId [hm_latestentityid nodes]

set gx [hm_getentityvalue nodes $NodeId globalx 0]

set gy [hm_getentityvalue nodes $NodeId globaly 0]

set gz [hm_getentityvalue nodes $NodeId globalz 0]

*createmark nodes 1 -1

*nodemarkcleartempmark

puts [hm_getclosestnode $gx $gy $gz]