Analysis
Contour Levels
This controls how contours are displayed for Contour plots.
Auto levels
The Auto levels check box controls the contour levels in the contour plot.
If the Auto levels check box is checked, TracePro divides the display of intensity values evenly into the number of levels defined in the Number entry in the Levels part of the dialog box. Select the Apply button to update the levels with the new values from the dialog box. The legend is updated as well.
If Auto levels is not checked, TracePro uses the levels defined in the list box on the right hand side of the Levels section of the dialog box. You can customize the levels by moving numbers in and out of the box. Move numbers from the Selection box into the list by pressing the > button, and out (to remove them from the list) by pressing the < key.
You can use Auto levels for a desired number of contours and TracePro will equally space the number over the flux or candela range plotted.
Selection
When the Auto levels box is unchecked, TracePro uses the levels defined in the list box on the right hand side of the Levels section of the dialog box. You can customize the levels by moving numbers in and out of the box. Move numbers from the Selection box into the list by entering a value and pressing the --> button, and out (to remove them from the list) by selecting the value from the list and pressing the <-- key.
You can use Auto levels for a desired number of contours and TracePro will equally space the number of values over range plotted. Values can then be added or removed from this list.
Number
If the Contour Plot box is checked, this controls the number of contour levels that are displayed in the contour plot.
Use percent of Max.
This option lets you enter a percent (from 0.0 – 1.0) of the maximum plot value. TracePro calculates and sets levels for each value entered.
Automatically Calculate Normal and Up Vectors
The Normal Vector and Up Vector specify the orientation of the irradiance map. When you open an irradiance map window, TracePro uses those vectors to orient the map. Depending on the surface you have chosen, those vectors might not be in a sensible direction. You can re-enter the vectors, or you can check the
Automatically Calculate Normal and Up Vectors box. If you check this box and press Apply, TracePro attempts to choose a sensible projection plane. If the surface is oddly shaped and/or does not project onto a plane sensibly, you might have to edit the Normal and Up vectors yourself. See “Normal and Up Vectors” on page 5.14.
6.10 |
TracePro 5.0 User’s Manual |
Analysis Menu
Normal Vector
The Normal Vector is a vector in 3D space that is used to orient the projection plane for the irradiance map. The plane is defined to be perpendicular to the Normal Vector, and the irradiance incident on the selected surface is projected onto this plane. When the map is displayed, the normal vector is pointing away from you.
Up Vector
The Up Vector is a vector in 3D space that is used to orient the projection plane for the irradiance map. The plane is defined so that the Up Vector is parallel to the vertical side of the plane. The irradiance incident on the selected surface is projected onto this plane. When the map is displayed, the up vector will point toward the top of the screen.
Set Defaults
The options are saved when the Model is written to disk in an OML file. After the data is changed, pressing the Set Defaults button will store the data into the TracePro defaults files to be used the next time TracePro is opened. See “User Defaults” on page 1.9.
Access to Irradiance Data
The results of an irradiance calculation can be exported from TracePro to another software package such as a spreadsheet or word processor. Make the irradiance map window the active window and select Edit|Copy in TracePro. Go to the other software program (for example, Microsoft Excel) and select Edit|Paste. The tabular data is transferred to the other program by the Windows clipboard. The data is tab-delimited to assist the transfer to a spreadsheet program. The Plot can also be copied as a bitmap via the Edit|Copy Bitmap menu.
You can save the underlying data in a text file. First, select the desired window to make it the active window. Second, select File|Save As from the TracePro menu. The Save As dialog box displays to let you save the file with the default extension txt. The file is saved in tab-delimited format, suitable for importing into a spreadsheet program. The plot can also be saved as a Windows bitmap file by selecting the bmp type from the Save as type list in the File Save As dialog box.
Ensquared Flux
TracePro includes the capability to select a rectangular area of the Irradiance Map and view the Ensquared Flux and optionally to display the rays contained in the selected region. To select a region in the map, Hold down the SHIFT key, then left-click and drag on the Irradiance Map to select the “ensquared” area.
TracePro 5.0 User’s Manual |
6.11 |
Analysis
Region Selection and Cursor 
Ensquared Flux and Area
FIGURE 6.6 - Irradiance Region and Ensquared Flux
The flux and area are displayed in the status bar of the main TracePro window.
Display Selected Rays
To activate the “ensquared flux and rays” feature, go to the Analysis Menu and check Display Selected Rays. When you view both the Irradiance Map and the Model Window you will see the rays contained in the selected region. The ray display updates after the selection is made.
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TracePro 5.0 User’s Manual |
Analysis Menu
FIGURE 6.7 - Rays displayed for a selected Irradiance Map region.
Select Rays Dialog
You can also enter the selected region manually through the Select Rays Dialog. Open the dialog from the Analysis|Select Rays... menu. Enter the new region corners and press the Set button to update the selection and show the new flux and area.
TracePro 5.0 User’s Manual |
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