other:dsx:orient3d:regions_of_interest
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other:dsx:orient3d:regions_of_interest [2024/07/17 15:43] – removed sgranger | other:dsx:orient3d:regions_of_interest [2024/07/17 15:44] (current) – created sgranger | ||
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+ | ====== Regions of Interest ====== | ||
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+ | ==== Contents ==== | ||
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+ | * [[# | ||
+ | * [[# | ||
+ | * [[# | ||
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+ | {{: | ||
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+ | Regions of interest (ROIs) are portions of an object' | ||
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+ | \\ | ||
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+ | |== Commands == | | ||
+ | |* **Add** creates a new ROI and adds it to the table.\\ \\ * **Remove** deletes the selected ROI, even if it has been placed (but not projected) on the surface model. However, if the ROI has already been projected, it does not remove it from the model.\\ \\ * **Place** displays the ROI floating above the surface model, based on the landmarks. You can then check and modify its positioning before actually projecting it onto the model. To assist with the positioning of the ROI, a yellow wire frame search box is displayed as well. The ROI is projected onto the portion of the surface model that is within this search box. The size of the search box can be adjusted using the parameters in the Parameters section.\\ \\ * **Adjust** enters and exits manual ROI adjustment mode. In this mode the placed ROI can be moved manually using the mouse buttons. The following interactions are defined:\\ \\ * Rotating about the ROI center - moving the mouse while pressing the left mouse button\\ * Spinning - moving the mouse while pressing the left mouse button and the Ctrl key\\ * Translation - moving the mouse while pressing the left mouse button and the Shift key or moving the mouse while pressing the middle mouse button\\ * Scaling - moving the mouse while pressing the right mouse button\\ \\ Note that the yellow search box adjusts itself with the ROI.\\ \\ Pressing the //Adjust// button a second time exits manual adjustment mode.\\ \\ * **Project** projects the placed ROI onto the surface model. Each ROI subregion is projected along its normal to determine the polygons of the surface that it intersects. These polygons are labelled with that subregion' | ||
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+ | \\ | ||
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+ | |== Parameters == | | ||
+ | |* **Principal ROI Expand** the scale factor for the search box in the principal direction of the ROI. The principal axis depends on the type of ROI, but is roughly equal to the direction of projection.\\ \\ * **Secondary ROI Expand** the scale factor for the search box along the width of the ROI.\\ \\ * **Tertiary ROI Expand** the scale factor for the search box along the length of the ROI.\\ \\ * **ROI Offset Factor** the amount to offset the ROI surface along the principal axis, specified as a percentage (0.0 to 1.0) of the maximum dimension of the object. The default value is 0.03. The principal axis depends on the type of ROI, but is roughly equal to the direction of projection. | ||
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+ | \\ | ||
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+ | |== Currently implemented ROI == | | ||
+ | || Rectangle [NxM] |\\ |**Rectangle [NxM]** is a flat rectangular ROI whose normal vector is specified by the orientation parameter. It is divided into NxM subregions, and is projected onto the object along the negative of its orientation axis. Its initial placement on the object is specified by four landmarks: //edge1//, //edge2//, //edge3//, and //edge4//. These landmarks do not need to be placed in any specific order, or in any specific locations relative to each other. They are used to define the minimum and maximum extents of the ROI in the two non-principal dimensions in the object’s local coordinate system. For example, if the ROI’s orientation is +Z or -Z, then the minimum and maximum X and Y coordinates of the four landmarks define the ROI rectangle in the XY plane.\\ \\ {{: | ||
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other/dsx/orient3d/regions_of_interest.1721230981.txt.gz · Last modified: 2024/07/17 15:43 by sgranger