Apply bitmap mask to image on html5 canvas -

-

good morning, have canvas background image, need put image on , apply mask on have transparency. here can find link sample of final result need. can me?

enter image description here

imagecontext.drawimage(mask, 0, 0, width, height); imagecontext.globalcompositeoperation = 'source-atop'; imagecontext.drawimage(img, 0, 0);

http://codepo8.github.io/canvas-masking/


Comments

Post a Comment

Popular posts from this blog

javascript - Hide toolbar of pdf file opened inside iframe using firefox -

-
other browsers such chrome,ie working fine when given #toolbar=0.but not working in firefox. please help. this code. <html> <body> <iframe src="reports/reports.pdf#toolbar=0" width="100%;" height="80%"> </iframe> </html> i think it's dependent on application/plugin in browser opens pdf, works differently , might ignore there directives (depending on browser, plugin, platform, pdf viewer). the general recommendation here use these "directives" @ end of url: #toolbar=0&navpanes=0 you may try recommendations http://blogs.adobe.com/pdfdevjunkie/web_designers_guide : embedding using pdfobject you use basic html markup embed pdf files in page there more elegant solution out there. take @ pdfobject philip hutchison. pdfobject pretty easy scripting tool dynamically embedding pdf files web pages. uses javascript inject element dom tree of html file. there’s...
Read more

Ansible - ERROR! the field 'hosts' is required but was not set -

-
i've error when launch playbook don't found why.... error! field 'hosts' required not set there main.yml : --- - hosts: hosts - vars: - elasticsearch_java_home: /usr/lib/jmv/jre-1.7.0 - elasticsearch_http_port: 8443 - tasks: - include: tasks/main.yml - handlers: - include: handlers/main.yml and /etc/ansible/hosts : [hosts] 10.23.108.182 10.23.108.183 10.23.108.184 10.23.108.185 when test ping, : [root@poste08-08-00 elasticsearch]# ansible hosts -m ping 10.23.108.183 | success => { "changed": false, "ping": "pong" } 10.23.108.182 | success => { "changed": false, "ping": "pong" } 10.23.108.185 | success => { "changed": false, "ping": "pong" } 10.23.108.184 | success => { "changed": false, "ping": "pong" } please, me :) regards, you have syntax error in playbook. ...
Read more

Copy range with conditional formatting -

-
i have range conditional formatting in existing excel file. used epplus copy range new sheet, found conditional formatting missing. is there way copy range conditional formatting using epplus? i found solution this. did not test on formattingruletypes. (only needed 2 of them moment) in application have 1 template row each sheet. var formatlist = fromsheet.conditionalformatting.tolist(); foreach (var cf in formatlist) { // sourcerow row containing formatting if (cf.address.start.row == sourcerow ) { iexcelconditionalformattingrule rule = null; switch (cf.type) { case officeopenxml.conditionalformatting.eexcelconditionalformattingruletype.greaterthan: rule = dest.conditionalformatting.addgreaterthan(); break; case officeopenxml.c...
Read more