wheelzoom | small script for zooming IMG elements

by jackmoore JavaScript Version: Current License: MIT

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A small script for zooming IMG elements with the mousewheel/trackpad.

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Community Discussions

Trending Discussions on wheelzoom

Zoom in/out image with Scrolling on the image or pressing +/- button

HERE maps JS, disable mouse zoom but not panning

Here Maps for Javascript: Disabling WHEEL_ZOOM doesn't make page scrollable

Image doesn't render in print preview

zoom in zoom out image on scrolling in javascript

How to zoom out in gojs?

How to align control buttons horizontally-bottom instead of vertically-right NgxImageViewer

GOJS second diagrams's zoom issue

goJS dropdown remove items

goJS disable adding new nodes when no options in dropdown

QUESTION

Zoom in/out image with Scrolling on the image or pressing +/- button

Asked 2020-Apr-16 at 20:15

I have some razor pages that each contain 1~3 images .

I want that if i hovered on them and scrolled , zoom in or out depend on scroll direction or if i pressed a + / - button zoom or zoom out the image .

also i want to apply to all images without considering how many images does the page have . i mean be appliable using querySelectorAll or something like that

something like googlemap zoom but for images (jpg/png/...)

better to all be written in JavaScript

is there any library that has mentioned options ?

is there any website which has a tutorial tutorial ?

one i found was https://www.jacklmoore.com/wheelzoom/ but there is no +/- button suport

thanks in advance .

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ANSWER

Answered 2020-Apr-16 at 17:43

I tried something similar on a previous project of mine, perhaps try use the following resource as a guideline;

https://ihatetomatoes.net/how-to-zoom-into-an-image-on-scroll/

You could try using the script they suggest:

Source https://stackoverflow.com/questions/61256433

QUESTION

HERE maps JS, disable mouse zoom but not panning

Asked 2020-Mar-08 at 12:13

I would like the user to be able to pan the map with their mouse/finger. However I want to restrict zooming to only using HERE ui controls.

I have tried the following:

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ANSWER

Answered 2019-Dec-17 at 18:14

The problem why dragging was disabled was that you try to disable the feature which doesn't exist in Behavior object (PINCH_ZOOM & DBL_TAP_ZOOM). Also the way how features should be disabled is different in API version 3.0 and API version 3.1 (latest). From the code above I see that you use older version 3.0, therefore:

In version 3.0 there are only 3 features you can disable/enable: H.mapevents.Behavior.DBLTAPZOOM,H.mapevents.Behavior.DRAGGING, H.mapevents.Behavior.WHEELZOOM

So your code to disable zooming should look like:

Source https://stackoverflow.com/questions/59356567

QUESTION

Here Maps for Javascript: Disabling WHEEL_ZOOM doesn't make page scrollable

Asked 2020-Jan-30 at 03:50

we implemented HERE maps in the design of our pages, so that it takes up the full width of the browser window. We also are using marker clustering and info bubbles that open on tap events.

See screenshot.

Here Maps Fullwidth

I would like to disable the mouse scroll to affect the zoom and pan of the map yet retain the ability to scroll to the bottom of the page. It seems that disabling the wheelzoom like this disables the window scroll behavior completely (as the map is full width). Are there any alternative suggestions/ tips on what to try?

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ANSWER

Answered 2020-Jan-29 at 18:10

Unfortunately it is not possible to achieve this right now. If you disable wheelzoom, API doesn't propagate the event. The team is aware of this behavior and will deliver an update in the near future.

FYI, the correct way to disable the Behavior's feature looks like this: behavior.disable(H.mapevents.Behavior.Feature.WHEEL_ZOOM);

See Behavior#disable documentation for more details.

Source https://stackoverflow.com/questions/59954162

QUESTION

Image doesn't render in print preview

Asked 2019-May-14 at 17:34

I need to print a element, for this, i am using primefaces

In carDetail panelGrid, i have a zoomable image, when i click in print commandlink, the zoomed image does not render in print preview.

zoom JS:

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ANSWER

Answered 2019-May-02 at 21:09

By default, a browser will ignore background css rules when printing a page, and you can't overcome this using css.

The user will need to change their browser settings.mor

To keep yourself from relying on that, put the images directly in the HTML with an actual tag.

you can set parent ‍‌overflow: hidden; and set image transform then increase scale image element for zoomable.this should work in print.

Source https://stackoverflow.com/questions/55905266

QUESTION

zoom in zoom out image on scrolling in javascript

Asked 2019-Mar-26 at 06:17

I created tabs with image.When I scroll on the image it will zoom in and zoom out. But I am facing the problem,in only first tab it is working with function zoom in & zoom out(when i scroll).I didn't get what i'm doing wrong.

index.html

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ANSWER

Answered 2019-Mar-26 at 06:17

Nice work i worked it out and find that you are using wheelzoom(document.querySelector('img.zoom')); here in this code you are using querySelector where this code will return only one element not all element instead of this code you need to use wheelzoom(document.querySelectorAll('img.zoom')); then your example will work . I have tried and its working

Source https://stackoverflow.com/questions/55350722

QUESTION

How to zoom out in gojs?

Asked 2018-Sep-04 at 08:02

I am trying to zoom out but not's working and here I'm using go.ForceDirectedLayout

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ANSWER

Answered 2018-Aug-30 at 10:11

You have set Diagram.autoScale, which will cause it to always zoom to "UniformToFill". That will prevent the user from doing their own zooming.

If you only want to automatically rescale the diagram "UniformToFill" when you first load the model after the initial layout, set Diagram.initialAutoScale instead. This will allow the user to zoom in or out afterwards.

https://gojs.net/latest/intro/initialView.html#AutomaticViewportManagement https://gojs.net/latest/api/symbols/Diagram.html#initialAutoScale

Source https://stackoverflow.com/questions/52093607

QUESTION

How to align control buttons horizontally-bottom instead of vertically-right NgxImageViewer

Asked 2018-Aug-28 at 12:34

I am using NgxImageViewer and i want to display controls horizontally-bottom of the screen instead of vertically-right

Html

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ANSWER

Answered 2018-Aug-28 at 07:26

Try this CSS. Hope this works. Basically you are moving all buttons to bottom and then placing them from left-right.

Source https://stackoverflow.com/questions/52051870

QUESTION

GOJS second diagrams's zoom issue

Asked 2018-Apr-29 at 15:37

I have two GOJS diagrams on a same page. one is primary diagram. It gets data on page load and displays the nodes. and it also has a search to find path between nodes.
Search takes source node and destination node. then on search action, the second diagram only displays the nodes involved in search and their links.

I am using mouse wheel for zoom in and zoom out.

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ANSWER

Answered 2018-Apr-29 at 15:37

Don't set Diagram.autoScale if you want the user to scale (a.k.a. zoom) the diagram.

Source https://stackoverflow.com/questions/50074688

QUESTION

goJS dropdown remove items

Asked 2018-Feb-21 at 23:13

I have simple python flask goJS graph application which looks like this:

Sources for node and link texts are loaded from backend side of app and I set them in model.modelData part like this:

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ANSWER

Answered 2018-Feb-21 at 20:14

I seem to have answered this question before for links, so I took the same code and duplicated it all for nodes. I did improve the textEdited event handler to handle undo/redo, although it's obviously more verbose with all the calls to console.log.

Source https://stackoverflow.com/questions/48891610

QUESTION

goJS disable adding new nodes when no options in dropdown

Asked 2018-Feb-21 at 20:21

I have simple python flask app where I send JSON data to my HTML and with goJS I display my graph which looks like this:

I made custom choices dropdown for users to edit node and link text. Those choice options are read from .txt file and sent to html via flask. Options in dropdown lists are made so that when option is selected once, it can not be selected again, until user delete node or link with that used option, and then he can use that option again. So far, I used this code to make nodes text selectable in dropdown list:

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ANSWER

Answered 2018-Feb-21 at 20:21

I didn't realize you had asked this so many times.

Source https://stackoverflow.com/questions/47803055

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