I am trying to create a line connection on click an image icon, I have tried the same using the wires.html example. But it is not working. I am using react with mxGraph. How to implement this. Is there any way to achieve this.
mxEvent.addGestureListeners(
img,
mxUtils.bind(this, function(evt) {
mxConnectionHandler.prototype.isStartEvent = function(me) {
console.log("Here we have to start the line connection");
};
})
);
I have to start the line connection inside the bind event. Is there anyway to fix this. I have tried but none of them is working.
I really need help.
In the image Arrow Connection (Multiple points are not supported. Used for directly connecting source to target) is working properly. But need to implement Line Connection (Multiple points are supported. Starting from source we can click any where to create multiple points till the target connection).
Please check the below URL for example
Demo URL: http://jithin.com/javascript/examples/contexticons.html
Source Code URL: https://jsfiddle.net/fs1ox2kt/
In the Demo URL, when click on a cell 4 icons will be displaying (Delete, Resize, Move, Connect). I have replaced Delete with Line Connection and Resize with Arrow Connection. Please have a look.
I am not sure I understand your question correctly, so I am answering to some possible ones:
I found the hello world example very helpful for understanding how to write code which allows to create and modify nodes and connections using mxGraph.
Your tags suggest that you are using React. Interestingly, you are not mentioning Redux-Saga as library. If you are not using it yet, you might want to have a look at the concept of reducers.
Your question might also be about the specific behavior of a mxGraph line connection:
when I click on the line connection hover icon it does not start from the cell.
When looking at the workflow example, I do not see any hover icon when I want to draw a line or connection from a task box to another. I remember vividly that it took me a while to figure out that you have to click on the source box, hold, and drag onto the target box.
If your question is more about hover icons, you have already another (unanswered) question on that: adding connection handler on click hover icon not working mxGraph
EDIT: I finally understood that the icons in your figure are the hover icons, so there is a 5th interpretation of your question:
Problem description: The user clicks on the orange box with the microchip-icon then some pop-up menu (your hover-icons) appear, and then the user should choose a line type by clicking on on of the items. The endpoint of the respective line should still be the task box the user selected initially.
Solution sketch: Already in the initial onClick-event, you should populate a variable final_vertex with the coordinates of the box with the micro-chip icon containing the coordinates of the click, or the respective vertex - your box. When drawing the chosen connection, you have to make sure to choose this final_vertex as end-point, and the box with the lambda-icon as initial vertex. In other words, you need at least two events - the initial onClick and an onHoverItemClick. I am not too familiar with mxGraph, but I assume you cannot solve the issue with a single event-handler.
Related
I have a map with a slider that controls the display of some points as you move the slider left and right (from year 1 to year 10).
I have some of these points filtered based on another parameter that is tied to 4 individual buttons.
When I slide the slider, and then click on one of the buttons, the text that tells you how many points are on the map doesnt update. It only updates after you move the slider (again, not when you click the button).
I want to ensure that as soon as one clicks the button, not only does the map update, but the text also updates.
Ive tried a variety of options, but none seem to work. I am not entirely sure where to look here.
The easiest way to see the issue is by following the link, i have everything hosted on bl.ocks.
https://next.plnkr.co/plunk/Ov8dHR7jI09aTFSU
(the plnkr needs to be refreshed for the data to start loading)
no error messages
A dirty and easy fix is to just replace filterData() call inside the buttonClick with what you do in slider callback -- document.getElementById("slidertext").innerHTML = "Achieved Goals: " + filterData() + " ";, really confusing you didn't come up with it. Probably should be refactored into a separate method to avoid repetition.
I have an issue that I can't seem to resolve. Even though my current job does not call for integration, I have been doing a bit of it for a specific project.
BACKGROUND:
Basically, this is what I am currently working on: when I click on my fake button, it creates a box - more clicks, means more boxes which are created. However, the boxes need to be able to do one more thing than simply replicate - each one of them needs to allow me to drag and drop an image into them. So, if I click 5 times on the fake button, the 5 new boxes needs to allow me to drag and drop 5 different images. Currently, I have a box there by default (as a testing ground).
PROBLEM:
I cannot seem to duplicate the boxes correctly. I have tried several things, including switching classes to id's and what not to try and merge several pieces of coding together. Ultimately, I need to be able to place any images in the draggable boxes. 5 boxes, 5 images dragged into them etc.
NOTE 1:
I cannot use server-side coding, as I don't have access to the server. All of it has to be client side.
NOTE 2:
The images I bring in are from outside folders - from the desktop (dragged and dropped).
NOTE 3:
I watered down the code in the fiddle to only have the pieces of coding relevant to what I am attempting to do. However, the scripts there don't work within the fiddle, since I had to take them out of the environment. Though, they do work within the correct environment.
FIDDLE:
[My link] https://jsfiddle.net/t9dq3w28/10/
...
I am pretty new to this. I am using https://github.com/Wildhoney/ngDonut to create donut on my website. I am able to get it up and running now my next step is to make it clickable. Lets take this example http://ng-donut.herokuapp.com/
Suppose if I want to make it in a way when a user click on the donut partition the it becomes highlighted with corresponding row on the left hand side pane. I am not sure how to achieve it.
Can anyone throw some light on it?
Thanks in advance.
If you don't want to fork and modify the project they have https://github.com/Wildhoney/ngDonut#mouse-events
Using the click handler and the model object I imagine you can find the corresponding row and set a property on it that causes it to be highlighted (ng-class). For the pie itself to highlight you may be able to make use of the colours property mentioned in the README.md there.
If that doesn't work out would need to fork the project and take a look at where it's using those colours to draw the pie with D3 and have it modify them based on the last one that was clicked on.
I'm relatively new with web and I am using FullCalendar on a personal project and am trying to accomplish what I would think would be relatively easy. I may have to change some code around as I don't think what I want is available out of the box.
Here is a screenshot of my version of the FullCalendar I am using:
As you can see, I have several "events", well essentially they're a group of events and instead you just see the number of events for that day. So for Today, there are 10 events essentially, I just group them up. The problem is, you have to click above the event in order for the cell to select. I am trying to make it so that the event or the count text IS essentially the background without the rectangle, etc. See the screenshot below for what I am going for:
Making the eventColor transparent just makes the entire event disappear which is not what I want. I've also tried changing the background and border colors. The rectanglular shape is still present. Any ideas or possible suggestions regarding this? Thanks in advance for your help!
Not exactly sure what you mean, could you show us an example?
If you want the user to click "trhough" the event, you can use the CSS
pointer-events: none
This will ignore the mouse events (such as click) on this element, and then click on the one behind.
I'm using Google web toolkit for some project mapping seismic activity of some land area. The request from users is to create a map which marked points. When user will click on some point, more detailed information is shown.
So, I need to be able to draw some particular areas on a common image. Areas should be dynamically drawn (size and color based on last monitoring figures), and active: when user hover a mouse or click to the area, more detailed information is shown.
Please see the example of image:
http://polansky.eu/images/p07-b.jpg
I tried many ways how to draw dynamically or overlay image, and to bind handlers, but nothing was successful. Any ideas please?
Check these projects out:
gwt-g2d
GWT Widget Library (demo)
gwt-canvas
gwt-incubator GWTCanvas (demo)
Not sure if all of the mentioned projects suit your needs but I guess they'll help as a starting point.