group type in MC API

[ksoufi]

hello

Does anyone know what's type in a group struct (m_db.h)?

what's the function to create a group? is't list_grp_add_empty? but there's no list_group input to these function!

thanks

 

[ 01-21-2003, 01:49 PM: Message edited by: ksoufi ]

[Guest CNC Apps Guy 1]

In the mill text file there is a section thal looks like this;

 

[groups]

1. "Group already exists with the same name."

2. "Select entities to add to group(s)"

3. "Group does not exist."

4. "Unable to read groups from file!"

5. "Enter unique group name"

6. "Restoring group members..."

7. "Current system GROUP"

8. "Current system RESULT"

9. "Select entities to remove from group(s)"

10. "Deleting Groups"

11. "Are you sure?"

12. "Select geometry that belongs to a group"

13. "Groups are used in toolpath operations. Are you sure?"

14. "XXXXXXXX-XXX"

15. "XXXXXXXX-XX1"

16. "Naming a group 'UNDEFINED' is not allowed."

17. " entities in selected group(s)"

(default group name - a number will be added to this)

20. "Group"

 

The "X" is how I have MC name it different from "Toolpath Group".

 

HTH

[ksoufi]

Yes

but these lines are used to ndisplay the group manager.

My question was or is : i need to gather entities in a group, what function should i use? it's list_grp_add_empty? if so what's the arguemnt "type"?

thanks

[Guest CNC Apps Guy 1]

Are you trying to gather all entities or select certian ones?

[ksoufi]

certan ones

I need to set up a "group_list", after that add many groups to this group list. In any group there some entities

[ksoufi]

there is no idea about group?

[bryan314]

ksoufi,

 

I think you might be having the same problem I'm having. In chooks you use the functions in m_db.h to create, delete, and add entities to groups.

 

list_grp_add_empty

list_grp_add_ents

list_grp_append_ents

list_grp_remove_ents

 

They all take a 'name' variable. But unless you created the group how do you know the 'name'? right?

 

For the life of me I can't find a function to get a list of current group names. I think this is the same problem you're having. right?

 

Maybe Product Developement Guy or one of the other developers could help.

 

I know the 'op_common' structure in 'm_avars.h' refer to a group idn number but I can't find how use the group number to get the group name.

 

 

Bryan

[Guest CNC Apps Guy 1]

Perhaps "grpname"???

[ksoufi]

Bryan & James

Thanks for reply

In fact i'm trying to do this :

_____________________________________________

//create a new group

list_grp_add_empty ("group1",TRUE,1,&succf);

if (!succf)

return;

.

.

.

//add entities to group

list_grp_append_ents ("group1",1,&e_ptr,&succf)______________________________________________

 

There is two problem

1) th 1st one is after creating successfuly the "group1" and when running the list_grp_append_ents , there's a warning msg dlg box : memory allocation error

and then it pops up a second dlg box: this time is a Debug message :

list_grp_append(2)

Temporary file cfeated .....

2) the second problem is that once the "group1" was created, it doesn't appear in the list of Groups dlg box. When trying to create a new group by the icon "new", it gives me a warning : group1 already exists with the same name. This's what you said Bryan, there's no function to retrieve group from list_group!

there's allso some questions about the "type" input, what's exactly?!

I hope find answers for all our questions

[bryan314]

Let's see, under list_grp_add_empty and list_grp_add_ents the 'type' (short type) is the type of group to create.

 

0=geometry - normal group for adding entities - ie lines, points, and arcs.

1=operations - groups seen in the operation manager - adding toolpaths

2=SystemGroup

3=SystemResult - these last two I assume are for creating the groups 'Group' and 'Result' like when to xform-tranlate-copy entites. they're stuck in Group and Result groups.

 

If you're trying to add geometry like lines and arcs to a group that might be part of your trouble. Your using 1 (operation group)

code:

---

  list_grp_add_empty ("group1",TRUE,1,&succf);

---

Another problem is you're calling TRUE in your second variable. This sets the group to hidden. That also might be why it isnt showing up in the group list.

 

Bryan

[ksoufi]

Hello Bryan

it seems to work fine, in fact the "type" causes problems. But tell me where did you find these informations, What chapter or *.h?

Now i'll trying to "link" a group to an operation.

[bryan314]

The information can be found in chapter 11 of the develpement kit doc files(11db.doc). Also look in the *.h files themselves. Some functions are in the h files but haven't been updated into the documentation.

 

Bryan

[ksoufi]

usually i chek only *.h, and specialy this information (type)wasn't. They make it oly in doc.

[pro]

Does anybody know how to change value of parameter

"use group's color" with using c-hook?

By default this parameter true and all entities in group have red color.

I found such parameter in group_list, but how can I get this variable?

[bryan314]

pro,

 

Add

code:

---

EXTERN group_list * (*_group_list_ptr);   /*  */

#define group_list_ptr (*_group_list_ptr)

---

to a header file or your source to get access to to the in-memory group list.

 

Bryan

[Shake]

hello

Does anybody know how to append an operation to Toolpath Group 2"?,

I'm trying like this, pelase anyone help me

 

code:

---

    op_list *opl;

list_manager (OP_ID, "", LSTMGR_GET, (void **)&opl);

while (opl != NULL)

{

list_grp_append_ents ("Toolpath Group 2", // I: new group name

1, // I: number of ents in eptr list, 0=use .sel ents

&opl->eptr, // I: list of entity eptrs

succf);

 

opl=opl->next_ptr;

}

---