# BSpline.MATLAB.GUI

**Repository Path**: wangjj1991/BSpline.MATLAB.GUI

## Basic Information

- **Project Name**: BSpline.MATLAB.GUI
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-04-08
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# BSpline.MATLAB.GUI

BSpline MATLAB GUI Program

## 0. Start the program
Run GUI.m, Zoom, rotate, and move figure handles are on the left top of GUI.

## 1. Load 2D and 3D data

1) Press “Load 2D Data’ button, and choose a file to load. User could load multiple curve.
2) Press "Load 3D Data" button, and choose a file to load. User could load multiple curve.
3) When user load a new curve, basis function of the new curve could display in basis function axes.
4) When user load a new curve, the degree of the new curve and the number of control points would show below curve axes.

## 2. Move control points

User could move any control point on the curve axes. Just drag the point.

## 3. Select a curve

1) User could click on the curve that are decided to interact with.
2) When user click on a curve. The curves’ line width would be thicker and others would be thinner.
3) When user click on a curve. The basis function would change based on the selected curve.

## 4. Display curve, control points and control polygon

1) Select one curve on the b-spline axes.
2) Check/uncheck curve/control points/control polygon.

## 5. Change degree
1) Select one curve on the b-spline axes.
2) Change degree by selecting a number on the pop-up menu.
3) When users load or select a curve, the number on the pop-up menu would change to all possible degree.

## 6. Move knot vector
1) Select a curve
2) Move knot vector on the basis function axes.

## 7. Change knot vector
1) Select a curve on the b-spline axes.
2) Click on the button of “Modified open uniform knot vector”/ “Floating uniform knot vector”.

## 8. Create a new curve
1) Enter the curves’ degree first， default value is 2, degree = order - 1.
2) Click on “Create” button, the program would come in ginput process.
3) Click control points on the b-spline axes and press Enter after user finishes adding control points.

## 9. Insert control point
Insert control point at the beginning and the end
1) Select a curve
2) Click button “Insert a control point at the beginning”/ “Insert a control point at the end”.
3) Add a point on the b-spine axes.

Insert control point in the middle
1) Select a curve
2) Click button “Insert a control point in the middle”.
3) Select two control points by clicking first.
4) Add a new point on the b-spine axes.

## 10. Delete a control point
1) Select a curve.
2) Click button "Delete a control point".
3) Click near the point that is to be deleted.

## 11. Clear
Click “Clear” button, the program would re-run and clear all previous data.

## 12. Exit
Click "Exit" button, the program would exit.