Draw a line?

Similar Questions

• How to draw a line on a pic

  CCan I draw a line on a photo in the photo app. ??

  No, but there are many annotation applications in the App Store. To start try Skitch.

  Almost all drawing applications allow you to set photos, then draw over them, too.

• Draw 2 lines in a graph

  Is it possible to draw two lines in a single chart using Grapher? If so, how? If no, then how I can draw two lines or more?

  Yes, click on the sign in lower left to add another equation.

• Draw a line connecting two points in the WPF chart

  I'm trying to understand the best way to draw a line between two existing points on my graph in WPF.  At first, I thought I had it works fine; I just added another parcel to my graph then given exactly two points for rendering.  But I quickly noticed that the app has become surprisingly slow and CPU was quite high (adding other plots does not affect the use of the CPU as long as they have a complete set of points (?)).  He wants me if I looked at using the DataToScreen method on the chart but I can't know what the parameters are.  The second parameter is simply an IList that tells me a lot.  This seems to be the method I want to use for the coordinates of a point on the graph screen.

  No one knows what the second parameter is supposed to be for the DataToScreen method?  Everything I tried throws an Exception of Argument.

  Thank you
  Dan

  DataToScreenwill return a screen coordinate in the plot area of a chart of the value of the raw data horizontal and vertical in the given list. The parameter value is a IList for compatibility with other methods of graphical query such as FindNearestValue , return IList values containing raw data.

  A concrete example, say you had a graphical configuration with a wide horizontal axis ranging from 0 to 100 and a vertical axis double precision ranging from 10 to 20:

  
          
              
              
          
      

  To get the screen coordinates of the value at the center of the two axes, you can call:

  graph.DataToScreen(plot, new object[] { 50, 15.0 })

  Note that the raw data values corresponding to the type of axes (horizontal AxisInt32 returns the integer 50 and vertical AxisDouble Gets the value 15.0 ).

  You also mentioned a performance issue where "adding other plots does not affect the CPU so that they have a complete set of points". I did a simple test app that adds an array of two points of a chart on each key (for example graph.Data.Add(new[] { new Point(x1, y1), new Point(x2, y2) }); ), but could not reproduce the problem you saw. Could you share the code, you use to draw the connection line?

• Using custom control: draw a line and output start and end points

  I'm looking to find or make a custom control (or simple Subvi), which appears as a grid of 100 x 100 unit and allow me to draw a line from one point to another on this grid. It will then display (x, y) of departure and the point of this line on the grid.  Any help or ideas?

  Thank you

  Steve

  LabVIEW 2009 SP1

  You want essentially is a loop with an event structure when you process mouse down, move and up to events for the controls. There are several ways to implement something like that, but it will be probably the simplest:

  1. Use a table or a listbox multicolumn for your grid. Hide scrollbars and headers.
  2. You can use the ActiveCell property to-2, - 2 to select all cells. You can then use the cell size property to define the exact size of the cell.
  3. Then you put a picture on the top of the table control and color its transparent background so that the table shows through. Property node allows you to ensure that both line up on exactly the same location and size.
  4. You use the mouse on the image control events to detect clicks and moves.
  5. Point of the table to the method of the column line allows you to translate the position data of the event to a cell.
  6. You use the image control screws to draw the line on the photo based on these data.
  7. You can even color the cells selected in the table by using the table properties.

  If you want to simplify things a bit, you can also use the event of timeout instead of moving the mouse event to draw the line, but then you keep the timeout value in a shift register and hand it to-1 (no timeout) when the mouse event to the top.

  I would also say treatment mouse enter and leave events to change the cursor and cancellation if the user leaves in the middle of drag.

• How to draw the lines automatically

  In LabVIEW I must draw a line automatically (both vertically and horizontally) the user will define the vertical and horizontal number lines.

  Is this possible with LabVIEW

  Thanks in advance

  You move to the point of departure of the line using "move the pen", and then draw the line using "draw the line".

  Repeat for each line. (using for example a for loop and autoindexing on positions).

• I want to draw a line between 2 specific points on an image inserted in a Panel? Help, please!

  I am a beginner in working with LabWindows/CVI and I want to draw a line between 2 specific points on an image inserted in a Panel? Please help or examples of code.

  As evidenced by the Wolfgang there is a problem in the definition of recall. InstallCtrlCallback wants a reminder of the standard of review as a parameter: apparently you have structured your reminder callbackName on the prototype of a recall of Panel, which obviously missing the setting "control".

  In addition, the recall of control should be said somewhere before it can be used. In other words, you must add his statement before your function {main}, either in one of your include files, or directly in the code. This is the reason for the error 'found int, whereas CtrlCallbackPtr. '

  Third point: you create a new picture control in the callback assigned to the image control. And you reuse variable 'Test', which already holds a valid control ID...

  Finally: what you expect to make from '1' in callbackData parameter, given that you do not use anyway? Unless you want to adapt the behavior of recall some past in callbackData conditions, you must pass NULL as the parameter.

• Draw the line below each item ListField

  Hi all

  I want to make a ListField similair to the contacts application. Under each ListField article a horizontal line is drawn as a separator. Somehow, I can't draw a line under each article. It works if I put the line above each item, but this means that the last element does not.

  That's what I'm doing now:

  public void drawListRow(ListField listField, Graphics graphics, int index, int y, int width) { // Draw a line separator above each field except the first one    if (index != 0) {     graphics.setColor(Color.LIGHTGREY);       graphics.drawLine(0, y, width, y);    }}
  

  Thanks in advance

  When you draw the line, you need to add the () listField.getRowHeight for the parameter y and subtract 1, IE

  graphics.setColor(Color.LIGHTGREY);
  int yPos = y + listField.getRowHeight() - 1;
  graphics.drawLine(0, yPos, width, yPos);
  

• Need to draw the line & bargraph on Blackberry using JDE 4.7

  Hello

  I need to draw a line and a graphic barcode using JDE 4.7.

  can someone help me find the starting point.

  Thanks in advance.

  The forum search will often provide an answer.

  http://supportforums.BlackBerry.com/T5/Java-development/how-implements-a-chart-on-BlackBerry/m-p/465...

• Draw the line width problem

  Hello

  1. work on the version of BB storm (9500/9530 Simulator) is v4.7.0.75
  2 opportunity BB JDE 4.7
  3. the request is:

  I want to draw a line with my own thickness as in 'C' we have a setPenStyle method. is there a method that will do the operation similar to the blackberry.

  Thank you

  Sendhil Kumar V

  Try this forum,

  http://supportforums.BlackBerry.com/Rim/Board/message?board.ID=java_dev&thread.ID=19608&view=by_date...

  See if it helps,

  Try drawFilledPath(),

• Draw straight lines with Photoshop and the Wacom Tablet pen?

  Hello
  I was just wondering how to draw straight lines using pen Wacom Intuos and Photoshop. I was hoping there was an a little sovereign tool or something that will help you with it but can not understand. Thank you ahead for your help with this.

  Same as with a mouse. Click once on one end of the line the shift click on the other end of the line.

• How to draw a line (with the line segment tool) then draw another line, from those previous anchor point. When I try immediately draw another line on the other anchor lines it try to turn instead.

  I'm following a course of basic fundamental illustrator on Lynda. The video of "draw straight lines" is troubling me. They draw a line with the line segment and then draw another line coming out the anchor point at an angle.

  Here's where it is troubling me - when I try to drag a line to the anchor point trying to transform the first line, I drew. (the line cursor turns into a selection tool) I can't draw another line connecting the first.

  Advice would be great because it's driving crazy me.

  See you soon,.
  Kyle

  Yes, it is irritating. You must clear the previous line first. If you want to make sure that both ends are perfectly aligned, start by turning on the guides. If you want two lines to be part of the same way, you should use the tool pen instead.

• Illustrator CC 2015, need to draw the line after line with arrowhead already attached.

  CorelDesigner has an option where you just draw your line / lines and arrow is already added at the end of the line.  Not only that your arrow lines can have a color outside the line (which surround it). So if you make a technical with arrows pattern when placed on top the drawing there is white or what ever color you want outside the black line (what thickness you choose so) so it's easier to read the technical drawing. So, basically, it's not line against line. That's why you would put a little white around the line. He gives him the space to breathe and easier to read the technical drawing. In Illustrator, I find that I draw my line. Then hover over the line options palette, and then scroll down arrow heads and choose my arrow head. Then calculate the rest, make outside the line have a white that surrounds it. Thus, it can be placed on technical drawings. I find there are many steps I have to do when Corel has this feature built-in and you leave. I currently have a trial version of Corel. But... I already have Adobe Suite. I don't want to have to buy another program. But I also see that CorelDesigner is somehow more user-friendly for people who need to work with drawings technical line (writing). I understand that not every program offers the same tools. But I really need the speed of it because I work with a lot of technical CAD which are handed to me. If there is a way in Illustrator to draw my lines one after the other with the arrow head already attached? Then of course I need little white around it if its duplication on other technical lines.  It just seems like a lot of steps in Illustrator. I also understand I could draw a line w/arrow attached installer as I want. Then draw another line... use the eyedropper tool and click on the correct line and my other line with change. Once more... what a pain. I feel that I have to jump through hoops to get my final result. I hope so that there's something built in Illustrator, I did not know was there and just unnoticed.

  Yes, I was able to do, but this is delicate (buggy) to get there.

  Make sure that the two traits have identical points of arrows and line widths.

  After you have created your effect of offset on long-distance running, move the effect of shifting way somewhere else in the stack, and then put back where it was. This seems to be the only way to make it work. Weird.

• I'm trying to draw a line with a pencil in Flash Professional and it disappears.

  Seems simple, but... I'm trying to draw a line with a pencil in Flash Professional and it disappears.  It doesn't let me change the color of the line.  It shows grey hatched. Help please.

  Values of alpha and the line weight must be greater than 0

  

• How can I draw a line around the edge of a piece of property that I shot a video clip of 13 elements?

  How can I draw a line around the edge of a piece of real estate in a video clip with 13 elements?

  KING OF THE SKY

  First 13 items on what operating system? Have you updated 13 to 13.1 still using Help Menu/updates to date of an open project?

  Your question immediately... you could try something like this

  In this scenario, you start with your video on video 1 track with the Timeline indicator placed in the appropriate location of content timeline.

  The Titler line file created will be automatically placed at the position of the indicator in the timeline.

  Text Menu/New/default of titration / and select the Section forms.

  The Titler file goes to Video Track 2 above the video on the video 1 track.

  Select the line tool in the section shapes and draw your line on screen correspond to the where you want it to appear in the video below.

  Your image of the line is the line on transparent background where the content below shows through the transparent areas in this image of the line.

  Please consider. If any questions or need any clarification on the above, do not hesitate to ask.

  Thank you.

  RTA

• Arrows appear when you try to draw the line in Photoshop

  Sorry for the noob question, but when I try to draw a line in Photoshop, I get only an arrow.  Can someone tell me how to solve this problem?  Thank you!

  If you use the online tool, make sure that you do not have the arrow heads selected by clicking the gear icon.