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Tag: Annotation

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1 vote
5k views

Is there any way to provide annotation tooltip onmouseover? Perhaps I can subscribe on surface mouse events and manage visibility and positions on “tooltip” annotations by myself? If so, could you please provide reference to surface mouse events API.

1 vote
5k views

Hello, everyone.

I want to add annotations for analyzing 3d charts.
In order to do that, it is necessary to be able to make several marks on the X-axis, Y-axis, and Z-axis, and I would like to know the best practices.

please check the attached picture. It is similar with cursor but it’s fixed.
I found Custom Geometry documents.
https://www.scichart.com/documentation/win/current/webframe.html#Adding%20Cubes%20and%20Custom%20Geometry%20to%20the%20Chart.html
but I am not sure this is for the best.

Thanks,
Kim, JinSeok.

1 vote
4k views

How to update the text Annotation in JavaScript. I can add the new Text annotation but I can’t update the old text Annotation. whether we have any option in sci chart for JavaScript.

1 vote
4k views

hello.
I added an OverView and scrollbar below the main chart, referring to the CustomOverviewView example.
Graph and scroll functions work without problems.
I want to show the main chart annotations in the OverView.
How can I solve my problem?
have a good day!

1 vote
4k views

I have a real time updated chart and users can add annotation to the chart. The position of the annotation will be updated with the chart data. I would like to stop updating the annotation position while user dragging the annotation. So I added a flag (e.g. isDragging) to the annotation dragStarted and dragEnded events. The isDragging flag will be set to true in dragStarted and then set to false in dragEnded. I will check this flag before updating the annotation position.

Here’s the problem, the annotation dragStarted event will be triggered when users do panning in the chart. But the dragEnded will not be triggered in this case. It breaks my plan to stop updating the annotation position as the isDragging will be incorrect. Is it a bug that the annotation dragStarted event (but not the dragEnded event) triggered when panning?

  • Quyen Sy asked 1 year ago
  • last active 1 year ago
0 votes
3k views

Hi,

Can you please tell me how to show an annotation(extends at BoxAnnotation(x1, y1, 2, y2)) that starts at a certain point(x1, y1) and ends at the end of the chart. That is, the starting point (x1) is known, and the end point (x2) at the very end of the surface (graph)?
Thanks in advance.

Regards,
Batyr

1 vote
2k views

Hello,

When annotations and the rollover modifiers are displayed on the very left side of a chart they align with the center of the candlesticks on the chart. However, as they get displayed toward the right side of the chart they get more and more offset to the right side of the candlestick.

Can anyone point me in the right direction to figure out how to fix this issue seemingly with my xAxis?

See attached screenshots,

  • Leland asked 11 months ago
  • last active 11 months ago
0 votes
1k views

Hello,

I am trying to select a single X value on my chart and get the data values from the X value that I selected. I am still pretty new to SciChart but I was looking around and saw that there is a DataPointSelectionModifier. My goal is to create a VerticalLineAnnotation for the user to use and once that annotation is created, to pull the data values from that X value. Could this be done? Any advice or help is greatly appreciated!

Thanks,

Preston

0 votes
1k views

Codesandbox link: https://codesandbox.io/p/sandbox/vertically-stacked-axes-forked-pd3h7g?file=%2Fsrc%2FApp.tsx%3A133%2C25

I put the first box annotation to be from -5 to 6 and the x-axis range is from 0 to 10, so that mean some portion of the first box annotation is out of the chart. And there is a click event on the box annotation and console log whenever it is clicked on, and when I click outside of the chart box/square and align it to the box annotation, it is registering the click.

  • Nung Khual asked 3 months ago
  • last active 3 months ago
1 vote
399 views

We’re allowing our users to place down annotations on the chart with an annotation creation modifier. One of these annotations is a Text annotation.

We then allow users to save these annotations into our own proprietary file format and load them back in with the chart data. To do this we iterate through the AnnotationCollection of the chart and parse the SciChart annotations to data we save to our files.

To save the content of the text for the TextAnnotation we read the TextAnnotation.Text property. However, we’ve noticed that this property is not set until the annotation has lost focus (we click away from the annotation somewhere else on the chart). If we save the annotation before we click away from it, we do not get the current text from the TextAnnotation.Text property.

The process to reproduce this is:
1. Place down a TextAnnotation.
2. Edit the TextAnnotation content. Do not click away from the text so to annotation remains in “Editing” mode
3. Save the data.
4. As we’re saving we read the TextAnnotation.Text property to save to our file. However, the TextAnnotation.Text property returns a blank string because its still being edited.

Is there a way from within our code that we can finish the editing of the text annotation, so that when we get the TextAnnotation.Text property it is the current text the user typed in? Or is there a way to get the current text within the TextAnnotation without finishing the editing or changing the focus?

Showing 51 - 60 of 60 results