Ok, assuming you want to draw a string on an image in C#, you are going to need to use the System.Drawing namespace here: private Image DrawText(String text, Font font, Color textColor, Color backColor) { //first, create a dummy bitmap just to get a graphics object Image img = new Bitmap(1, 1); Graphics drawing = … Read more
Bitmap bmp = new Bitmap(“filename.bmp”); RectangleF rectf = new RectangleF(70, 90, 90, 50); Graphics g = Graphics.FromImage(bmp); g.SmoothingMode = SmoothingMode.AntiAlias; g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.PixelOffsetMode = PixelOffsetMode.HighQuality; g.DrawString(“yourText”, new Font(“Tahoma”,8), Brushes.Black, rectf); g.Flush(); image.Image=bmp;
For a “cleaner solution” and in order to keep using the base Panel, you could simply use Reflection to implement the double buffering, by adding this code to the form that holds the panels in which you want to draw in typeof(Panel).InvokeMember(“DoubleBuffered”, BindingFlags.SetProperty | BindingFlags.Instance | BindingFlags.NonPublic, null, DrawingPanel, new object[] { true }); Where … Read more
You are correct in that UIBezierPath is simply an objective-c wrapper for Core Graphics, and therefore will perform comparably. The difference (and reason for your performance delta) is your CGContext state when drawing your CGPath directly is quite different to that setup by UIBezierPath. If you look at UIBezierPath, it has settings for: lineWidth, lineJoinStyle, … Read more
You can draw two rectangles and place them next to each other. And then rotate by 45 degrees. Modify the width/height/top/left parameters for any variation. DEMO 1 DEMO 2 (With circle) HTML <span class=”checkmark”> <div class=”checkmark_stem”></div> <div class=”checkmark_kick”></div> </span> CSS .checkmark { display:inline-block; width: 22px; height:22px; -ms-transform: rotate(45deg); /* IE 9 */ -webkit-transform: rotate(45deg); /* … Read more
Using the Google Maps API V3, create a Circle object, then use bindTo() to tie it to the position of your Marker (since they are both google.maps.MVCObject instances). // Create marker var marker = new google.maps.Marker({ map: map, position: new google.maps.LatLng(53, -2.5), title: ‘Some location’ }); // Add circle overlay and bind to marker var … Read more
This is probably simpler than you’re thinking: int w = WIDTH_PX, h = HEIGHT_PX; Bitmap.Config conf = Bitmap.Config.ARGB_8888; // see other conf types Bitmap bmp = Bitmap.createBitmap(w, h, conf); // this creates a MUTABLE bitmap Canvas canvas = new Canvas(bmp); // ready to draw on that bitmap through that canvas Here’s the official documentation on … Read more
Start By going through the Fingerpaint demo in the sdk sample. Another Sample: public class MainActivity extends Activity { DrawingView dv ; private Paint mPaint; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); dv = new DrawingView(this); setContentView(dv); mPaint = new Paint(); mPaint.setAntiAlias(true); mPaint.setDither(true); mPaint.setColor(Color.GREEN); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeJoin(Paint.Join.ROUND); mPaint.setStrokeCap(Paint.Cap.ROUND); mPaint.setStrokeWidth(12); } public class DrawingView extends View { … Read more
Use String.Format with alignment values. For example: String.Format(“|{0,5}|{1,5}|{2,5}|{3,5}|”, arg0, arg1, arg2, arg3); To create one formatted row.
I know it’s a bit late in the game, but I remembered this question from when it was new and I had a similar dillemma, and I accidently found the “right” solution, if anyone is still looking for one: <path d=” M cx cy m -r, 0 a r,r 0 1,0 (r * 2),0 a … Read more