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## Vertices

| : Select vertices. Selects vertices. A left click on a vertex select it. The selected vertices are drawn in green. If the drawing mode is "wire, all" then the non-selected vertices are drawn in yellow, otherwise, the non-selected vertices are not drawn. If the "Shift" key is pressed when clicking, the vertex is added to the selection list. Press "Enter" to select a vertex by its number. A right-click change ppModeler to the vertex move tool. Press 'm' opens the vertex coordinates window on the last selected vertex. : Select vertices by rectangle. Selects vertices that are inside a rectangle. : Move vertices. Grabs the selected vertices. When the user click on a selected vertex, the selected vertices follow the movement of the mouse until the user release the button. The vertices don't move along the view z axis. A right-click change ppModeler to the select vertex tool. :Magnetic move of vertices. Grabs the selected vertices and vertices in a given distance of them. When the user select this tool, ppModeler first ask for the radius of influence r. All the vertices with a distance less than the radius r from one of the selected vertices will follow the selected vertices movement. Let r' be the distance from a vertex to a selected vertex. The movement of this vertex will be 1-(r'/r) the movement of the gabbed vertex. The selected vertex at (0,0,10) is moved to (0,0,15): with the move vertex tool with grab vertex tool and a radius of 10 : Add vertex. Adds a vertex on an edge. When the user click near an edge, a vertex is added on this edge. : Del vertex. Deletes the selected vertices. The selected vertices are deleted. The vertices are moved to the nearest vertex and then are supressed. For example, when the setelected vertex is deleted, the object becomes . : Merge selected vertices. Merges the selected vertices. This tool can produce strange result. : Collapse vertices. This tool is for cleaning the selected object. Some tools (like the bevel tools) can create unwanted vertices, too near from other vertices to be distinctable. When the Collapse tool is selected, ppModeler asks for a distance d. Then, for each vertices connected by an edge, ppModeler computes the distance d' between these two vertices and, if d' < d then the two vertices are merged. : Cut an egde in equals parts. Cuts a selected egde in equals parts. An edge is selected if its two vertices are selected. The number of parts is aked to the user. For example, cutting the selected edge in 3 parts gives . : Add an edge. Splits a face in two faces. The two first selected vertices must bellong to a common face. This face is then divided in two faces by adding an edge which is joining the two selected vertices. For example, adding an edge between the two selected vertices gives . : Remove an edge. Removes a selected edge. An edge is selected if its two vertices are selected. When this tools is activated, the edge is removed. There is no test to ensure a proper face. After removing an edge, the object can contains non-planar faces, and/or concave faces. For example, when the selected edge is removed, the resulting face is concave . : Move selected vertices on a plane. First, ppModeler asks for a plane (see Selection of a plane). Then, each selected vertex can only moved in a plane defined by the normal to the selected plane and the vertex position. : Move selected vertices along a plane normal. First, ppModeler asks for a plane (see Selection of a plane). TheAn, each selected vertex can only moved along the normal of the selected plane. : Edit normals. All the normals of the selected oject are drawn in green. The user can then click on the end of a normal and move it as wanted. As example, this is how the normals of a sphere looks like : : Edge Bevel. A bevel is a way of smoothing an angle of the selected oject. The bevel is done on the selected edge. This tool can create unsee vertices, near the existing vertices. Please, use the collapse tool to ensure a proper object. An example : the selected edge is cut to give . : Vertex Bevel. The bevel is done on all the selected vertices. An example : the selected vertex is cut to give . : Scale vertices. Moves the selected vertices toward or away from their barycenter. The vertices don't have to be on the same face. The horizontal position of the mouse after pressing the left button defines the diplacement. On the left, the vertices move away from their barycenter, on the right they move toward it. An example : the selected vertices are moved away their barycenter and give .

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