geometry create shape frustum
Allows for creation of the frustum object.
Format:
geometry create shape frustum |
|---|
frustum_name = | a new frustum |
adams_id = | adams_id |
comments = | string |
center_marker = | an existing marker |
angle_extent = | angle |
length = | length |
side_count_for_body = | integer |
top_radius = | length |
bottom_radius = | length |
segment_count_for_ends = | integer |
Example:
geometry create shape frustum & |
|---|
frustum_name = | frustum__1 & |
adams_id = | 101 & |
comments = | "a new frustum" & |
center_marker = | origin & |
angle_extent = | 150 & |
length = | 10 & |
side_count_for_body = | 10 |
Description:
Parameter | Value Type | Description |
|---|
frustum_name | A New Frustum | Specifies the name of the new frustum |
adams_id | Adams_id | Specifies an integer used to identify this element in the Adams data file |
comments | String | Specifies comments for the object being created or modified. |
center_marker | An Existing Marker | Specifies the marker at the center of a circle, an arc, the bottom of a cylinder, or the bottom of a frustum. |
angle_extent | Angle | Specifies a subtended angle measured positive (according to the right-hand rule) about the z-axis of the center marker. |
length | Length | Specifies the height of a cylinder or a frustum. |
side_count_for_body | Integer | Specifies the number of flat sides Adams View draws on a cylinder or a frustum. |
top_radius | Length | Specifies the radius at the top of a frustum. |
bottom_radius | Length | Specifies the radius at the bottom of a frustum. |
segment_count_for_ends | Integer | Specifies the number of straight line segments Adams View uses to draw the circles at the ends of a cylinder or a frustum. |
Extended Definition:
1. A frustum is a specialized cone whose top and bottom are perpendicular to the cone central axis. A frustum will move with the part that the center marker belongs to.
2. You may use the name specified by the frustum_name parameter later to refer to this frustum. Adams View will not allow you to have two frustums with the same full name, so you must provide a unique name.
Normally, entity names are composed of alphabetic, numeric, or '_' (underscore) characters, and start with an alphabetic or '_' character. They may be any length. For more information, see
Using Extended Names.
By enclosing the name in double quotes, you may use other printable characters, or start the name with a numeral. If a name contains characters, or starts with a numeral, you must always quote the name when entering it.
Note that you can specify the parentage of an entity (e.g. what part "owns" a marker or a geometry element) when you CREATE it by changing the name. If you enter just the entity name, then the default parent will be assigned by Adams View. If you type in the full name, then you may over ride the default parent. In most cases, when creating an entity, Adams View will provide a default name. The default name that Adams View provides will specify the parentage that it has assumed. You may, or course, delete this name and use your own. The form of a full name is:
"...._NAME.GRAND_PARENT_NAME.PARENT_NAME.ENTITY_NAME"
The number of levels used varies from case to case and the parentage must exist before an entity can be assigned to it.
3. When you use the FILE ADAMS_DATA_SET WRITE command, Adams View writes an Adams data file for your model. Adams requires that each modeling element be identified by a unique integer identifier. If you use this parameter to specify a non-zero identifier, Adams View will use it in the corresponding statement in the Adams data file.
You may also enter zero as an identifier, either explicitly or by default. The next time you write an Adams file, Adams View will replace the zero with a unique, internally-generated identifier. Adams View will permanently store this identifier with the element just as if you had entered it yourself.
Normally, you would let all identifiers default to zero, and Adams View would generate the identifiers for you. You are never required to enter a non-zero identifier. You only need to specify it if, for some reason, you wish to control the Adams file output.
4. When an Adams Solver data file (.adm) is read into Adams View, all comments associated with a statement (from the end of the previous statement through the end of the current statement) are stored with the object. Comments in the data file can be associated with model. These comments must follow the title statement and be followed by the comment 'END OF MODEL COMMENTS'. This string must be uppercase.
When an Adams Solver data file is written, the comments for an object are written before the statement corresponding to the object.
5. The angle starts at the positive x-axis of the center marker and subtends the arc, the arc of the cylinder, or the arc of the cone frustum.
6. Because the two circles at the ends of a cylinder or a frustum are both perpendicular to the z-axis of the center marker, they are parallel. Adams View uses the value of LENGTH to specify the z distance between the two circles. A positive value specifies a cylinder or a frustum along the positive z-axis of the center marker, and a negative value specifies a cylinder or a frustum along the negative z-axis of the center marker.
7. The top of the furstum is perpendicular to the center marker z-axis, and the center of the top is at the position on the center marker z-axis that LENGTH specifies. Also, The bottom is perpendicular to the center marker z-axis, and the center of the bottom is at the center marker origin.