Draw objects
You use this function to draw triobjects (DTMs) as a set of triangular polygons. You can use this function to display a subset of the triobjects in a DTM. The triangles will have faces colour and pattern filled. Whether faces are drawn is dependent on the global settings for this attribute. The objects drawn will be used for hidden surface removal if this global attribute is set.
To run this function: Choose Display > Surface or solid, or Solids > Display > Display object, or...
Note: The triobject (DTM) must be reloaded into GRAPHICS before displaying the triangles.
This may take some time depending on the size of the triobject.
Tip: If you want to display only some of the triobjects in a DTM and the parts of the object you expect are not displayed, run ERASE DTM/3DM before you run DRAW OBJECTS.
Object range
Enter the string or triobject range which is to be drawn on the screen. The range must be a standard range specifier.
Trisol range
Enter the segment or trisolation range which is to be drawn on the screen. The range must be a standard range specifier.
Triangle range
Enter the segment point or triangle range which is to be drawn on the screen. The range must be a standard range specifier.
In the case of each of the ranges entered above, if the range is a blank then this signifies that all ranges of particular triobjects, trisolations or triangles are to be drawn. Therefore to draw all triobjects choose Apply.
A range specifier takes the form of 'a, b, c' where each of the values 'a', `b' and 'c' represent real numbers and it is interpreted as from 'a' to 'b' in steps of 'c'. The value 'c' is optional and if it is not present then a step size of 1 is assumed. The value 'b' is also optional and if it is not present then a simple range which represents a single value is defined. Ranges can be made complex by concatenating ranges together using the ';' character. Thus a complex range may take the form, '1,9,2;20,100,10'.
Result
The specified data are drawn.
Display strings as lines
This function draws strings as a line connecting the points.
To run this function: Choose Display > Strings > As lines, or...
Layer name
The name of the layer from which the data are to be drawn may be entered here. The active layer is provided as the default value. You may draw data from all graphics layers by leaving this field blank.
String range
Enter the string range which is to be drawn on the screen. The range must be a standard range specifier.
Segment range
Enter the segment range which is to be drawn on the screen. The range must be a standard range specifier.
Seg pnt range
Enter the segment point range which is to be drawn on the screen. The range must be a standard range specifier.
In the case of each of the ranges entered above, if the range is a blank then this signifies that all ranges of particular strings, segments or segment points are to be drawn. Therefore to draw all strings choose Apply.
A range specifier takes the form of 'a, b, c' where each of the values 'a', 'b' and 'c' represent real numbers and it is interpreted as from 'a' to 'b' in steps of 'c'. The value 'c' is optional and if it is not present then a step size of 1 is assumed. The value 'b' is also optional and if it is not present then a simple range which represents a single value is defined. Ranges can be made complex by concatenating ranges together using the ';' character. Thus a complex range may take the form, '1,9,2;20,100,10'.
Location for legend, Legend title
It is often very useful to have a legend presented on the graphics screen to provide a simple and intuitive means of describing the meaning of the colours for each of the strings that have been drawn. A number of drawing functions have the ability to create such a legend for the data which is drawn.
Follow this link for complete details on how legends work for each of the functions which draw string data.
Result
The specified data is drawn.