DXF Passage

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The Viewer allows you to export 3D passage models based on the left, right, up and down (LRUD) measurements at each station. The Passage Model page allows you to control how the passage models are rendered. Here are detailed explanations of the options:


1. Show Passage As. This option controls whether the passage is rendered as a full 3D polygon or as simple marks and lines. Marks and lines are useful when you are sketching the passage walls onto the map and you only need guide marks. The 3D polygons are useful when you want to display more complex passage models. Click here for information about passage wall models.


2. Tick Mark Options. These options allow you control the way the Tick Marks are created.


A. Mark Left-Right. This option causes the program to place markers at the Left and Right wall positions.


B. Mark Up-Down. This option causes the program to place markers at the Up and Down wall positions.


C. Add Line To Mark. This option adds a line from the survey station to the wall mark. This makes it easy to see which marks are associated with which stations.


D. Mark From/Mark To. The passage dimension information (LRUDs) is always measured at a survey station. It is normally measured at right angles to the line of the survey shot. At the same time, each station in a survey can be both a “From” and “To” station. Thus, one set of LRUDs can be at right angles to different shots depending on the preferences of the surveyors. Enabling the Mark From option causes the Viewer to export marks that correspond to the From Station. Likewise, enabling the Mark To option causes the marks associated with the To station to be exported. Finally, if both are enabled, both sets of marks will be exported.


3. Mark With. This option controls the way passage walls are marked. The "L,R,U,D" option puts letters corresponding to Left, Right, Up and Down on the passage wall. The "Star" and "Period" options use these letter symbols to mark the passage walls.


4. Expand Wall Dimensions. In some instances, anomalies and missing data can cause distortions in the passage model. Checking this options causes the program to compensate for distorted or missing passage when it exports data for passage wall marks.