Zoom Pan Js

Javascript for Zooming and Panning in a Canvas. Learn how to use the virtual camera to add effects like pan, zoom and rotate to your animations in Adobe Animate. Prevent Page Zooming in Mobile Browsers. Add multi-touch gestures to your webpage. Pinch Zoom And Pan With HammerJS. I wonder if you can help me. This is the source code for the Zoom and Pan example. Plotly JavaScript Open Source Graphing Library. Previously, animators relied on third-party extensions of varying quality and compatibility, or modified their animations to mimic a camera’s movement. ZoomCharts explorable and interactive JavaScript charts library allows you to easily integrate content drilldown and multi-touch enabled big data visualizations into your web projects ZoomCharts - The world's most interactive javascript charts library to build custom analytics solutions. Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Founded in 2011. Instead, it's a helper class that saves you the work of drawing zoom boxes, capturing mouse click coordinates, and so on. API Examples Plugins. Read more Download Demo. js Zoom/pan map. The actual size for a PDF page is typically 100%, but the document may have been set to another magnification level when it was created. I tried couple of jquery zoom/pan image plugins but couldn't manage. While Zooming allows you to see data in more detail by selecting a particular region, Panning / Scrolling allows you to navigate through the chart after you zoom in. Active 2 years, 11 months ago. Panzoom is a lightweight JavaScript library to pan and zoom images inside a container using drag and mouse wheel events. Try it now. Display buildings in 3D Extrude polygons for 3D indoor mapping Add a 3D model Adjust a layer's opacity Animate a line Animate a series of images Animate a point Change building color based on zoom level Change the case of labels Display HTML clusters with custom properties Create and style clusters Change a layer's color with buttons Add a. How to disable zoom events in JavaScript charts. Smooth Zoom Pan – jQuery Image Viewer Free Download Smooth Zoom Pan – jQuery Image Viewer (Nulled) [Latest Version] This is a javascript / CSS based image viewer prepared to display product photos, maps or any image within custom small area. Just copy and paste codes for the growing zoom and pan hover effects in my blog. 8 Awesome jQuery Zoom Plugins at Learning jQuery. Supports animation, exporting to image, events, etc. Image Zoom In and Out Script. jQuery Pan Zoom is an open source image pan plugin. Add references to jQuery library and the jQuery pan. Each slide has a predefined zoom area that will be used to calculate the appropriate scale value for a fullscreen fill. If you have code questions about Cytoscape. Another similar project is zoom. 4? I have tried several samples and map navigation is not working at all in Chrome. This script allows you to zoom in/zoom out an image easily. To understand how zoom levels work, first we need a basic introduction to geodesy. Try it now. The language itself is great, but the interactivity provided by the browsers is definitely low: can display your SVG file on a browser and that's it - you can't navigate it, zoom it or pan :(Since I couldn't find anything around, I've decided to write a minimalistic javascript library to provide such interactions, so SVGPan was born! Features:. By default when you use mouse wheel or pinch to zoom, panzoom uses mouse coordinates to determine the central point of the zooming operation. PanoJS has gone through a couple of name changes. Given example shows Bubble Chart with zooming and panning. Together this gives us the type of `pan` and `zoom` we have come to expect from products like Google Maps. Can be configured and implemented in web pages with simple copy / paste steps. Zoom & Pan Disable animation and inertia Disable zooming and panning Double click to zoom. Add multi-touch gestures to your webpage. There must be better solutions available now. js: All of the library's features are accessed through this object. I don't think there's a function to do it for you; you'll have to handle the onPan(extent, delta) event from Map, and see if the extent passed in from that event handler that is beyond your desired extents. I needed to add zoom/pan on d3. It is similar to that of thumbnail picture script. Prevent Page Zooming in Mobile Browsers. Dolphin Jetpack for Android has a "force enable zoom" under Advanced Options. The core object is your interface to a graph. For a long time I have wondered how Google Maps and Figma have been able to support pinch-to-zoom multi-touch gestures from my trackpad on my Macbook, when there’s no special trackpad JavaScript…. This example shows how to add a zoom slider to a map and how to customize it. A "customizable crop and zoom" jQuery plugin. Read more Download Demo. This example is an attempt to create one more extension for AJAX-ZOOM that turns the viewer into an jQuery image slider with extended functionality. Panning and zooming can be achieved by manipulating the viewBox attribute, but that will affect the entire SVG including the controller. Finally, you might want it to zoom - which can be done using the `mousewheel` event listener, and a little bit of JavaScript to make sure it resizes around the mouse coordinates. js a saw that it's seem to be possible to operate with zoom and pan function. Lower zoom levels means that the map shows entire continents, while higher zoom levels means that the map can show details of a city. How to disable zooming and panning with Mapbox. Try it now. Pan and Zoom on an image. Currently, if you select the first point for the crossing window, then zoom or pan to select the other corner of the window, the crossing window only picks up what is visible on the. jQuery plugin to zoom and pan images, even those with a size that is a percentage of their. Leaflet works with latitude, longitude and "zoom level". js: Part 8 - Clipping with clipPaths ClipPaths basics; ClipPaths nesting and more. It's probably not production-ready. Zooming is done via the mouse wheel or via a pinch gesture. If it is, you can forcefully set the map extents back. Is anyone else seeing that map navigation (pan, zoom in/out) is broken in Chrome at ArcGIS JS API v3. Add references to jQuery library and the jQuery pan. Leaflet is designed with simplicity, performance and usability in mind. Zooming in d3. js and in the website of chart. Description: The ability to zoom while in the middle of using the stretch command without losing any of the entities. Thanks in advance & Best Regards. Currently requires Chart. AlottaZoom is a smooth pan and zoom plugin that zooms in/out an image and pans/moves it to a different image area with mouse or by clicking custom controls. js is a high-level, declarative charting library. When enabled, map navigation based on mouse scroll wheel is enabled. Zoom images on hover or click. Uber Zoom uses many features that you would normally find in a native iOS or Android app to improve the user experience, like rubberbanding and intertia. Creating an Image Zoom Library With Vanilla JavaScript August 2nd 2017 CSS In this tutorial we are going to build a simple JavaScript library for adding zoom-on-hover effects to images. Zooming to enlarge the product or image that has been shared on a site for better viewing by the customers. Display buildings in 3D Extrude polygons for 3D indoor mapping Add a 3D model Adjust a layer's opacity Animate a line Animate a series of images Animate a point Change building color based on zoom level Change the case of labels Display HTML clusters with custom properties Create and style clusters Change a layer's color with buttons Add a. It is impossible to read some layout related CSS styles from JavaScript (percent-based width and height, margins set to auto, etc. js - trackball controls MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan. I want the zoom to follow the position of the mouse and I want that zoom to feel. Let's jump right in!. Zoom and pan, introduction to FabricJS part 5. However I came across a few problems I'm not really sure of, because I'm a javascript. Zoom In/Out Effect Sliders Full Collection comes in 4 versions: Fixed Dimensions, Full Width, Full Screen and SideBa. Shift-drag will pan. Dolphin Jetpack for Android has a "force enable zoom" under Advanced Options. Zoom & Pan Images With Mouse Interactions – dmuka. It might lack elegance, though - I haven't tried to see if the effect is a shaky map that's fighting the user. I'm working on a little script that makes an object (div or img) moveable and zoomable within a given frame. The actual size for a PDF page is typically 100%, but the document may have been set to another magnification level when it was created. You can further process them as usual with jQuery, for example:. Finally, you might want it to zoom - which can be done using the `mousewheel` event listener, and a little bit of JavaScript to make sure it resizes around the mouse coordinates. Buy jQuery Mega Image Viewer - animated zoom and pan by lhp on CodeCanyon. Setting Min Zoom without base map using ArcGIS API for JavaScript? Hot. Center And Zoom function using ArcGIS API for JavaScript? Ask Question Asked 5 years, 3 months ago. Electronics. Create an interface for scanning maps through a lens. "panzoomzoom" Fired whenever the zoom is changed by any Panzoom zoom method, directly or internally. An object is passed into this function. Useful when plotting Graph with large amount of data. The option visibilityRatio, which is by default 0. This example shows landmarks over the image. Uber Zoom uses many features that you would normally find in a native iOS or Android app to improve the user experience, like rubberbanding and intertia. Get code samples for mapping, visualization, and spatial analysis. js with a map style pan and zoom. Panzoom is a progressive plugin to create panning and zooming functionality for an element. I'm creating a web map of a university campus. 0+ I have taken @DGS answer and changed it to suit what I was doing with cordova and intel-xdk so it's pure JS and hammer. The same samples work fine in firefox and IE. Can be configured and implemented in web pages with simple copy / paste steps. It is impossible to read some layout related CSS styles from JavaScript (percent-based width and height, margins set to auto, etc. These are 3 features with a lot of overlap, depending on the design choice and implementation, so I would like to first consider the user experience. I have the map functioning, but I don't want to be able to pan off of the basemap, into whitespace. This is the first time I am using Leaflet. js: All of the library’s features are accessed through this object. Extra problem for me:…. 9 allows you to add zoom and pan functionality to oversized images on your webpages. The Pan control on the map is no longer available. Considering what you see above as just an other image slider out of many on internet, the WOW effect is certainly it's ability to dynamically zoom into images of virtually any dimensions and filesizes. js can display magnified image inside lens:. Here is an example, which you can refer to set pan-mode as default and to hide the zoom/pan-button. I needed to pan and zoom on a single div while everything else stayed frozen in place. The actual size for a PDF page is typically 100%, but the document may have been set to another magnification level when it was created. jQuery Panzoom. When enabled, map navigation based on mouse scroll wheel is enabled. It’s your entry point to all the features in Cytoscape. The final result: a T-SNE rendered in three. For example, you can disable panning of the map with following line of code. This control appears by default in the bottom right corner of the map. Smooth Zoom Pan - jQuery Image Viewer This is a jQuery image viewer prepared to display product photos, maps or any image within custom small area. Useful when displaying large amount of data. Currently I have a map with a scrolling text bar on the left hand side. js is free and open source and you can view the source, report issues or contribute on GitHub. 1 to increase the size of the image group. Add references to jQuery library and the jQuery pan. It's your entry point to all the features in Cytoscape. # http://www. disable(); To disable map zoom on different mouse/touch actions, you can use any of the following functions or all together. Updated September 13, 2019. pan-x: Enables horizontal panning with a single finger interaction. Zoom & Pan Disable animation and inertia Disable zooming and panning Double. Smooth Zoom Pan. It is composed by several interactive examples, allowing to play with the code to understand better how it works. A different approach to Zooming in ZUI53 library, using pinch zoom / scroll wheel. You can change the number and. Zooming is very useful when there are large number of data points in the graph. enable disable disable. Zoom Image Plugins Functionality. The performance of plugin can vary according to number of landmarks. zhangmin's blog. org/content/cluster digraph G { subgraph cluster_0 { style=filled; color=lightgrey; node [style=filled,color=white]; a0 -> a1 -> a2 -> a3; label. Zoom Category: Image, Javascript, Zoom | October 21, 2018. This is a standalone pinch zoom pan React component with no other dependencies. This sample shows how you can use the navigation toolbar included with the ArcGIS JavaScript API to create pan, zoom, and other navigation buttons. js - trackball controls MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan. OpenSeadragonHTMLelements allows you to add HTML elements that pan, zoom, rotate and flip with the Openseadragon viewer. flyToBounds( bounds, options?) this: Sets the view of the map with a smooth animation like flyTo, but takes a bounds parameter like fitBounds. The language itself is great, but the interactivity provided by the browsers is definitely low: can display your SVG file on a browser and that's it - you can't navigate it, zoom it or pan :(Since I couldn't find anything around, I've decided to write a minimalistic javascript library to provide such interactions, so SVGPan was born! Features:. It’s your entry point to all the features in Cytoscape. I tried couple of jquery zoom/pan image plugins but couldn't manage. js by Willem Mulder is also a bit similar to Impress. JavaScript New to Plotly? Plotly is a free and open-source graphing library for JavaScript. Pan and zoom the canvas; Introduction to Fabric. js A JavaScript library for panning and zooming SVG things. Everything in Express plus powerful features for web designers and developers including 120 HTML parameters, Bookmarking, Tours, Watermarks, Slideshows, Hotspots, Animations, and more — plus complete JavaScript source code! Everything in Express and Pro plus enterprise-level features for mission critical applications. Over the last few weeks, I have been building a lot of D3 demos based on all kinds of world map data visualizations. Using jquery zoom image viewer plugins users can allow web visitors to zoom into the details on the web page. OpenSeadragonImagingHelper provides coordinate conversion, pan, and zoom methods in a simplified coordinate system. The actual size for a PDF page is typically 100%, but the document may have been set to another magnification level when it was created. The plugin is easy to set up you can apply the plugin to any image and zoom in and out images. We use cookies on our website to support technical features that enhance your user experience. Smooth Pan And Zoom Plugin For jQuery - AlottaZoom 02/01/2020 - Zoom - 436 Views. Elevate Zoom works best using two images, one low resolution for the visible image, and one high resolution for the zoomed image. Learn how to do mapping, geocoding, routing, and other spatial analytics. Shift-drag will pan. I want to render a visualization with tens of thousands of points. Prevent Page Zooming in Mobile Browsers. It is similar to that of thumbnail picture script. It also respects html markup and uses only two layers for scrolling content. I'm working on a little script that makes an object (div or img) moveable and zoomable within a given frame. Zoom In/Out Effect Sliders Full Collection comes in 4 versions: Fixed Dimensions, Full Width, Full Screen and SideBa. Drag the center of the box to pan across the area you want to see. This framework could be applied to games, development plans, or any layout that could benefit from being able to zoom in and pan to get a better view. Pan(options) Recognized when the pointer is down and moved in the allowed direction. SergeLand Image Zoomer is free jQuery image zoom plugin the magnifying glass effect. chartjs-plugin-zoom. js: Part 8 - Clipping with clipPaths ClipPaths basics; ClipPaths nesting and more. Using jquery zoom image viewer plugins users can allow web visitors to zoom into the details on the web page. Panzoom is a progressive plugin to create panning and zooming functionality for an element. These top 10 WordPress Image Gallery Plugin will create an amazing user experience for your site visitors. The same samples work fine in firefox and IE. After a painful search on Google, I finally found a simple way to do it. Built on top of d3. Double-clicking will zoom you back out. An example of how to use it together with Hammer. Panzoom is a progressive plugin to create panning and zooming functionality for an element. On touch-enabled devices, users can zoom the chart using the spread and pinch gestures and pan the chart using the drag gesture, too. Thanks in advance & Best Regards. Demo for svg-pan-zoom: In-line SVG. Viewed 28k times 9. The goTo method provides a convenient way to set the view's camera based on data (geometries, graphics) you want to view and from any perspective using heading, tilt, scale or zoom. I needed to add zoom/pan on d3. js` or `jquery. Lower zoom levels means that the map shows entire continents, while higher zoom levels means that the map can show details of a city. Leaflet SDK provides abilities to disable map zoom and pan events. js: All of the library's features are accessed through this object. Pan(options) Recognized when the pointer is down and moved in the allowed direction. So far so good. API Reference. js a saw that it's seem to be possible to operate with zoom and pan function. This opens up the ability to custom define those interactions in JavaScript. My problem seems simple at start: I have an SVG object (a map of Indonesia in my case), I want to zoom and pan a given element (a province) using JavaScript. There must be better solutions available now. JavaScript Line Charts with Zooming and Panning. Zoom and pan plugin for ChartJs is available from 2. How to disable zooming and panning with Mapbox. The language itself is great, but the interactivity provided by the browsers is definitely low: can display your SVG file on a browser and that's it - you can't navigate it, zoom it or pan :(Since I couldn't find anything around, I've decided to write a minimalistic javascript library to provide such interactions, so SVGPan was born! Features:. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. In 2012, I had a need for a simple zooming and panning capability for an animation project in Javascript. ) so the safe thing to do is to defer this change to individual site owners. This is the source code for the Zoom and Pan example. This options decides the minimal zoom level of the image. Currently, if you select the first point for the crossing window, then zoom or pan to select the other corner of the window, the crossing window only picks up what is visible on the. If you only have one image available, Elevate Zoom will still work if you scale down the image, although this is not recommended as your page load time will increase if you are loading larger images. It is impossible to read some layout related CSS styles from JavaScript (percent-based width and height, margins set to auto, etc. For a long time I have wondered how Google Maps and Figma have been able to support pinch-to-zoom multi-touch gestures from my trackpad on my Macbook, when there's no special trackpad JavaScript…. Creating an Image Zoom Library With Vanilla JavaScript August 2nd 2017 CSS In this tutorial we are going to build a simple JavaScript library for adding zoom-on-hover effects to images. I wonder if you can help me. D3 can be used to visualize any kind of data but I am mostly focusing on geographic information about the whole world. This tutorial shows you how to implement this in any sketch. js is free and open source and you can view the source, report issues or contribute on GitHub. panzoom is a simple jQuery & Vanilla JavaScript plugin that allows you to drag, pan, zoom in/out any elements of your webpage using CSS3 transforms. Since SVGs are infinitely scalable, it can be useful to add controls to pan and zoom, particularly to maps. 1 the pan\zoom functionality appears to work in Firefox. Buy jQuery Mega Image Viewer - animated zoom and pan by lhp on CodeCanyon. Like any other CanvasJS Chart, Bubble Chart supports zoom and Pan feature. User interface Center and zoom to gridLayer Change zoom control location Click event in a popup Custom marker tooltips Custom marker icons Draggable marker Editable table controlling marker data Filtering markers Searching for markers Geocoding with autocomplete Query the Geocoder control results in code Add geocoding Geolocation Interactivity. zoom/pan d3v4. It might lack elegance, though - I haven't tried to see if the effect is a shaky map that's fighting the user. Main Features. Because the View handles user interaction, events such as click are handled on the MapView. Documentation for all ArcGIS API for JavaScript classes, methods, and properties. Is anyone else seeing that map navigation (pan, zoom in/out) is broken in Chrome at ArcGIS JS API v3. For a long time I have wondered how Google Maps and Figma have been able to support pinch-to-zoom multi-touch gestures from my trackpad on my Macbook, when there’s no special trackpad JavaScript…. aCoords, skip rendering of objects that are not included in current viewport. Initialisation. Express includes the complete Zoomify Toolbar and thumbnail Navigator plus support for fullscreen viewing and much more!. Built on top of d3. ) so the safe thing to do is to defer this change to individual site owners. This example shows how to add a zoom slider to a map and how to customize it. Drag the handles of the box in the Pan & Zoom window to change the document magnification. Image panning with animation easing that works on mouse movement with css and jQuery. Display buildings in 3D Extrude polygons for 3D indoor mapping Add a 3D model Adjust a layer's opacity Animate a line Animate a series of images Animate a point Change building color based on zoom level Change the case of labels Display HTML clusters with custom properties Create and style clusters Change a layer's color with buttons Add a. The core object is your interface to a graph. Programmatically manipulate the SVG viewBox to Pan and Zoom; Mouse and touch events to pan the SVG; Mousewheel and pinch events for zooming the SVG; Animate pan and zoom actions. For example, you can disable panning of the map with following line of code. Ostrander hut panoramas from Christmas 2010; PanoJS is used in a dynamic 5D bio-image viewer in the Bisque system; History. Disabling mouse wheel zoom using ArcGIS API for JavaScript? 1. js by Willem Mulder is also a bit similar to Impress. "panzoomend". Handles huge data sets: dygraphs plots millions of points without getting bogged down. Weighing just about 38 KB of JS, it has all the mapping features most developers ever need. NET MVC Charts & Graphs with Zoom and Pan / Scroll Feature. Zoom levels. ) so the safe thing to do is to defer this change to individual site owners. js: All of the library’s features are accessed through this object. tagswith animated image viewers. Below is a list of the full set of controls you can use in your maps: The Zoom control displays "+" and "-" buttons for changing the zoom level of the map. We use cookies on our website to support technical features that enhance your user experience. Using processing, you sometimes want to be able to zoom and pan around your sketch to give yourself an extra degree of control. However I came across a few problems I'm not really sure of, because I'm a javascript. Can be configured and implemented in web pages with simple copy / paste steps. Pan and zoom the canvas; Introduction to Fabric. In this tutorial you are going to learn how to handle large images with the UIScrollView Control. Users can zoom the chart by rotating the mouse wheel and pan it using the drag gesture. It's probably not production-ready. Add multi-touch gestures to your webpage. Supports animation, exporting to image, events, etc. Some of the landmarks will show always and some will appear only when zoomed-in to predefined level. These top 10 WordPress Image Gallery Plugin will create an amazing user experience for your site visitors. Smooth Pan And Zoom Plugin For jQuery - AlottaZoom 02/01/2020 - Zoom - 436 Views. dygraphs is a fast, flexible open source JavaScript charting library. People expect some things never to move. Use tutorials to start building an app with the ArcGIS API for JavaScript. If you have code questions about Cytoscape. 3 - IE Good, Chrome Good, FF broken. This solution does not rely on swapping or even…. 8 Awesome jQuery Zoom Plugins at Learning jQuery. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on. disable(); To disable map zoom on different mouse/touch actions, you can use any of the following functions or all together. Zoom & Pan Disable animation and inertia Disable zooming and panning Double. Another similar project is zoom. js This is document gives a few insights on how to add a zooming feature with d3. Here is zoom. How to disable zoom events in JavaScript charts. ZoomCharts explorable and interactive JavaScript charts library allows you to easily integrate content drilldown and multi-touch enabled big data visualizations into your web projects ZoomCharts - The world's most interactive javascript charts library to build custom analytics solutions. Zoom Slider is a simple content slider with depth-like zoom functionality. js and Zoomooz. Here is an example, which you can refer to set pan-mode as default and to hide the zoom/pan-button. Useful when displaying large amount of data. We will also talk about triggering the zoom effect using JavaScript event handling to target other events such as click, doubleclick, and more events that CSS alone cannot give you access to. The jQuery mapbox() plugin is for creating relatively small scale, zoomable, draggable maps with multiple layers of content. Not only images, the library also works with Canvas and SVG elements. Currently I have a map with a scrolling text bar on the left hand side. js - trackball controls MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan. Demo for svg-pan-zoom: In-line SVG. OpenSeadragonGuides allows you to add horizontal and vertical guidelines to the Openseadragon viewer. Add touch gestures to your webapp. Smooth Zoom Pan - jQuery Image Viewer This is a jQuery image viewer prepared to display product photos, maps or any image within custom small area. Zoomify HTML5 Express delivers everything web designers need to add zoom-and-pan viewing to any website with powerful features not in the free version. ZoomControlStyle is therefore no longer available. dygraphs is a fast, flexible open source JavaScript charting library. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. Each slide has a predefined zoom area that will be used to calculate the appropriate scale value for a fullscreen fill. This opens up the ability to custom define those interactions in JavaScript. Click the image to enlarge and pan the image and move the cursor to pan the enlarged image. Can be configured and implemented in web pages with simple copy / paste steps. My problem seems simple at start: I have an SVG object (a map of Indonesia in my case), I want to zoom and pan a given element (a province) using JavaScript. It's probably not production-ready. For a long time I have wondered how Google Maps and Figma have been able to support pinch-to-zoom multi-touch gestures from my trackpad on my Macbook, when there’s no special trackpad JavaScript…. This jQuery image slider is a wrapper and extension of AJAX-ZOOM jQuery plugin. Learn how to do mapping, geocoding, routing, and other spatial analytics. Constraining by Viewport Visibility as a Ratio, and Constraining During Panning. js: Transformations. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. Electronics. The mega image viewer jQuery plugin allows you to easily replace <div> tagswith animated image viewers. 3/16/2015: Files uploaded Here is a widget that you can add to you maps that lets you zoom in or out by using a tool and draw a box on the map. We will make the whole library from scratch, without relying on jQuery or any other external dependencies. zoom/pan d3v4. People expect some things never to move. Add multi-touch gestures to your webpage. Panning and zooming can be achieved by manipulating the viewBox attribute, but that will affect the entire SVG including the controller. Hammer JS is used for gesture recognition. pan-x: Enables horizontal panning with a single finger interaction. Leaflet works with latitude, longitude and "zoom level". Founded in 2011. Google will ask you to confirm Google Drive access.