Method
There are four different methods that determine where inflection values occur. Select the method for distributing inflections. Equal Cell count and Custom Cell Count are based on percentages. Equal Value Ranges and Custom Value Ranges are based on values.
Equal Cell Count
Sets the inflections so that approximately an equal number of grid cells falls between each inflection value. See Spreading Inflections by Equal Cell Count.
Equal Value Ranges
Spreads the inflections evenly between the minimum and maximum of the source data range.
Custom Cell Count
Choose this method when you want to use your own percentages and not ones that are evenly spread.
Custom Value Ranges
Choose this method when you want to use your own values and not ones that are evenly spread.
Number of Inflections
Select from a list of 2 to 16 inflections or type a number between 2 and 255.
Round
Choose from a list of rounding factors to be applied to inflection values. You may not see the effects of this rounding if the spread method is based on cell count until inflection values are actually calculated.
Percentage list view control
Use the percentage list view control to edit color, percentage/value inflection pairs. Items in the list are sorted by percentage/value. Edit the inflection percentages/values by single or double clicking on them with the left mouse button; you can edit a value by typing over it. Double click on a color swatch to display a color picker and change the color. The vertical bar to the right of the list view control shows the spectrum of colors used in the grid.
Color Adjustments
Contrast
Use the Contrast scroll bar to adjust the contrast in the image. Slide the bar between 0 and 100% to set the grid's contrast level. You can use the cursor keys for fine adjustment.
Brightness
Use the Brightness scroll bar to adjust the brightness in the image. Slide the bar between 0 and 100% to set the grid's brightness level. You can use the cursor keys for fine adjustment.
Translucency
Use the Translucency slide bar to adjust the translucency for the image. Translucency can be set between 0-100%. An image with 0% translucency is completely opaque (or cannot be seen through). An image with 100% translucency is completely transparent (or completely invisible).
Gray scale
Check to show only gray scale colors in the grid.
Flip Colors Button
Click this button to invert the inflection colors.
Relief Shading
Shaded relief maps are grid maps whose grid cell colors have had their brightness adjusted to indicate surface slope and slope direction relative to a user-defined light source direction. MapInfo Pro determines the orientation of each cell in the grid, and assigns brightness to each grid cell.
Brightness (or reflectance) values correspond to light striking the surface. The light source can be thought of as the sun shining on a topographic surface. The maximum brightness is assigned at points where the rays are perpendicular to the surface (where the slope directly faces the light source). As slope faces turn away from the light source, lower reflectance values are assigned.
Light Source
The Light Source Options let you specify the orientation of the light source. Check to activate relief shading and/or generate relief shading information in the grid.
Horizontal Angle
Rotate the light source in the horizontal plane. Zero degrees corresponds to the light source shining from due East. Positive angles rotate the light source counterclockwise, so, for example, 90 degrees places the light source due North.
Vertical Angle
Rotate the light source in the vertical plane. Zero degrees places the light source at the horizon, and 90 degrees places it directly overhead. Specify angles between 180 and 360 degrees to have the light source originate from under the surface.
Vertical Scale Factor
Specify a scale factor for the z values between 0 and 100. Increasing this scale factor exaggerates the surface vertically, enhancing the shading effect. This can be useful for enhancing detail in relatively flat surfaces.
Inflection Values
Min
Shows the minimum data point value in the source table. This value is not editable.
Max
Shows the maximum data point value in the source table. This value is not editable.
Navigation Buttons
OK
Applies the specified changes.
Cancel
Closes this dialog box without saving any changes.