Draw lines by angle on bitmap 500x500












0















I try to make my own function for drawing lines on bitmap. All lines pass through center coordinate. I faced with several problems:




  1. Well known line equation y=tan(a)x as is doesn't work for me. Because I don't know how to match i,j coordinates in bitmap and x,y in Cartesian coordinate system.


  2. How to make start point center of bitmap and end its bound.
    Maybe someone know library for this for c# it will be worse than own implementation but still help me a lot.



scheme










share|improve this question























  • Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

    – Alexei Levenkov
    Nov 21 '18 at 18:45











  • Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

    – Jimi
    Nov 21 '18 at 19:05


















0















I try to make my own function for drawing lines on bitmap. All lines pass through center coordinate. I faced with several problems:




  1. Well known line equation y=tan(a)x as is doesn't work for me. Because I don't know how to match i,j coordinates in bitmap and x,y in Cartesian coordinate system.


  2. How to make start point center of bitmap and end its bound.
    Maybe someone know library for this for c# it will be worse than own implementation but still help me a lot.



scheme










share|improve this question























  • Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

    – Alexei Levenkov
    Nov 21 '18 at 18:45











  • Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

    – Jimi
    Nov 21 '18 at 19:05
















0












0








0








I try to make my own function for drawing lines on bitmap. All lines pass through center coordinate. I faced with several problems:




  1. Well known line equation y=tan(a)x as is doesn't work for me. Because I don't know how to match i,j coordinates in bitmap and x,y in Cartesian coordinate system.


  2. How to make start point center of bitmap and end its bound.
    Maybe someone know library for this for c# it will be worse than own implementation but still help me a lot.



scheme










share|improve this question














I try to make my own function for drawing lines on bitmap. All lines pass through center coordinate. I faced with several problems:




  1. Well known line equation y=tan(a)x as is doesn't work for me. Because I don't know how to match i,j coordinates in bitmap and x,y in Cartesian coordinate system.


  2. How to make start point center of bitmap and end its bound.
    Maybe someone know library for this for c# it will be worse than own implementation but still help me a lot.



scheme







c# drawable






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 21 '18 at 18:10









SkiFSkiF

105




105













  • Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

    – Alexei Levenkov
    Nov 21 '18 at 18:45











  • Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

    – Jimi
    Nov 21 '18 at 19:05





















  • Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

    – Alexei Levenkov
    Nov 21 '18 at 18:45











  • Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

    – Jimi
    Nov 21 '18 at 19:05



















Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

– Alexei Levenkov
Nov 21 '18 at 18:45





Very unclear what exactly you have problem with. Possibly stackoverflow.com/questions/11678693/… could help, but it sounds like you have problems even before drawing line...

– Alexei Levenkov
Nov 21 '18 at 18:45













Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

– Jimi
Nov 21 '18 at 19:05







Matrix.RotateAt. Or Graphics.RotateTransform. These in the System.Drawing namespace. In System.Windows.Media you have similar methods Matrix and RotateTransform. Start from these.

– Jimi
Nov 21 '18 at 19:05














0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53418189%2fdraw-lines-by-angle-on-bitmap-500x500%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53418189%2fdraw-lines-by-angle-on-bitmap-500x500%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Biblatex bibliography style without URLs when DOI exists (in Overleaf with Zotero bibliography)

ComboBox Display Member on multiple fields

Is it possible to collect Nectar points via Trainline?