paint

Android: digital signature using Bezier

由 a 夏天 提交于 2019-12-03 06:56:06
问题 I am trying two draw digital signature using Bezier as show in above image.when i touch and try to draw line then the result is dot line but not getting continuous line. Simple signature done by using simple signature but I want to create more a smooth curve using Bezier with touch pressure. tried with this link SignatureViewDemo.java public class SignatureViewDemo extends View { private int color = Color.BLACK; private Bitmap m_Bitmap; private final Paint m_BorderPaint; private Canvas m

How to draw a path with variable stroke width

由 蹲街弑〆低调 提交于 2019-12-03 00:42:47
My code is basically from this example ( http://corner.squareup.com/2010/07/smooth-signatures.html ) and Google APIs (FingerPaint) but now I want to use the class VelocityTracker in order to change the stroke width depending on the speed of my finger. I thought I could split a path into smaller parts but I didn't find any examples. There's also this second post ( http://corner.squareup.com/2012/07/smoother-signatures.html ) but I do neither have a specific bezier curve class nor do I collect all the points in an ArrayList so their example for adjusting stroke width is not very helpful. Does

2013, Existing package for drawing (painting, brush, lines) in iOS?

由 跟風遠走 提交于 2019-12-03 00:39:43
I need to add typical finger drawing to an app. (The usual.... choose colors, erase, thickness - just the usual you see in every app made.) It's hard to believe I have to program this from scratch, in this day and age? It's hard to believe there is not a common solution for this? All I could find is... https://github.com/levinunnink/Smooth-Line-View Review : that is a (beautifully written) example fragment of a few lines of code being how to draw with a path, with a good smooth result. It works perfectly, but it's just for drawing one "path." For example, you can't make a drawing with more

Android how to draw paint in free hand in MapView using overlay?

由 帅比萌擦擦* 提交于 2019-12-03 00:39:06
In my app Draw paint in free hand on Map view but searching lot of information finally got from rectangle shape draw on mapview but i want in place of rectangle draw free hand like zigzag how to change my code Any help please.. MapOverlay.java public class MapOverlay extends Overlay { private float x1,y1,x2,y2; private GeoPoint p1=null,p2=null; private MapExampleActivity mv = null; private Paint paint = new Paint(); private Path path = new Path(); private boolean isUp = false; //constructor receiving the initial point public MapOverlay(MapExampleActivity mapV,float x,float y){ paint

why can't I draw any stuffs on Frame in java?

由 走远了吗. 提交于 2019-12-02 23:17:15
问题 Coding is here. I can't create any rectangle or circle inside frame. the object of this project is to create converting celcius 2 Farenheit & Farenheit 2 Celcius. so what I want is, please teach me to how to draw rectangle or oval in side the frame. import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax

fingerpaint within a horizontalscrollview

由 夙愿已清 提交于 2019-12-02 22:00:10
问题 I am combining some pieces of code which I have found on stackoverflow and in the android development kit. I want to put the fingerpaint canvas within a lockable horizontalscrollview. However whenever I atempt to draw in a horizontal direction the scrollview scrolls rather than painting on the canvas. It did not have this problem when I had an imageview in the place of the custom view from fingerpaint. I think that perhaps the overriding of the onTouchEvent in both the custom

paintComponent is not being called in JPanel

由 耗尽温柔 提交于 2019-12-02 21:04:50
问题 I have following code: package hra; import java.awt.Color; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JFrame; import static javax.swing.JFrame.EXIT_ON_CLOSE; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class HerniPole extends JPanel implements KeyListener { public int velikostPole; HerniPole(int velikostPole) { this

Android: digital signature using Bezier

由 随声附和 提交于 2019-12-02 20:35:20
I am trying two draw digital signature using Bezier as show in above image.when i touch and try to draw line then the result is dot line but not getting continuous line. Simple signature done by using simple signature but I want to create more a smooth curve using Bezier with touch pressure. tried with this link SignatureViewDemo.java public class SignatureViewDemo extends View { private int color = Color.BLACK; private Bitmap m_Bitmap; private final Paint m_BorderPaint; private Canvas m_Canvas; private Point m_CropBotRight; private Point m_CropTopLeft; private float m_CurrentX; private float

Bug when drawing rectangles in my Paint Program

由 。_饼干妹妹 提交于 2019-12-02 19:57:35
问题 public partial class Form1 : Form { Point downPoint , upPoint; List<Shapes> shapes = new List<Shapes>(); public ShapesEnum shapeType; public Form1() { InitializeComponent(); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); foreach (var s in shapes) s.Draw(e.Graphics); } protected override void OnMouseDown(MouseEventArgs e) { downPoint = e.Location; } protected override void OnMouseUp(MouseEventArgs e) { base.OnMouseUp(e); upPoint = e.Location; CreateShape(); this

How to call a method that uses PaintEventArgs and coordinates variables

由 非 Y 不嫁゛ 提交于 2019-12-02 18:15:27
问题 I recently started programming in C# obviously and was trying to do a simple WinForms app that takes mouse coordinates and scales a Rectangle according to the coordinates. The issue I am facing is that i dont know how to call a method that uses more arguments (in this case is x, y and PaintEventArgs ). Or I do know, but I don't know what to do with the PaintEvent . Here is the whole code, since its pretty short and rather simple: using System; using System.Drawing; using System.Windows.Forms;
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