Fixed range for y axis when using x-axis rangeSelector

[David Banks]

Hi, new dygraphs user here. Awesome library!

Just one minor thing that I can't sort out. I have a graph with a range selector along the x-axis. I set valueRange to [5, 30].

If you use the range selector to move through the data the y-axis obeys the limits I set, but if you drag the graph itself the y limits adjust.

An example can be seen here.

http://howickweather.info/experimental/nov-temperature.php

Try reducing the x range to 10 days.  Then drag the range selector left or right and the y axis remains unchanged.

Then try dragging the graph itself (not the range selector) left or right with the mouse to see what I mean.

You can play with the options in the javascript console by accessing the dygraph object stored in dygraphSettings.dygraph

The code I used is:

var graph = new Dygraph(  document.getElementById("dygraph-graph"),  get_graph_data(["Temperature"]),  {    labels: ["Time", "Temperature"],    labelsDiv: "dygraph-legend",    labelsSeparateLines: true,    colors: ["#dd0000"],    valueRange: [5, 30],    showRangeSelector: true,    drawXGrid: false,    axes: {      y: {        valueFormatter: function(y) {          return y.toFixed(1) + "\xB0C";        }      }    }  });

Thanks,

David

[Dan Vanderkam]

+paul

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[Paul Felix]

Hi David,

If I understand correctly, the range selector is properly adhering to your valueRange setting, but the 'drag-to-pan' interaction model is not. If you turn off the range selector, the default interaction model has a 'drag-to-zoom' and a 'shift-drag-to-pan' behavior, and it looks like that has the same problem. Is that what you see?

If that's the case, you may want to submit a bug report regarding the interaction models and a custom valueRange. I believe it's a problem independent of the range selector.

Paul

On Mon, Dec 9, 2013 at 3:43 PM, David Banks <banks...@gmail.com> wrote:

[David Banks]

That seems to be the case Paul. 

Without a range selector, zooming works fine with a valueRange specified but the panning feature still allows you to drag the graph vertically. If there was no vertical drag, it looks to me like it would always stay in the specified value range.

I don't know if that's the same problem as the range selector though, because there is no vertical panning when using a range selector. It adjusts by itself...

I'm happy to submit a report but just a little confused about what exactly is causing the issue

David

[Paul Felix]

The range selector plugin just happens to install a different 'canned' interaction model:

  Dygraph.Interaction.dragIsPanInteractionModel

Without the range selector, the default interaction model is

  Dygraph.Interaction.defaultModel

Both of these interaction models seem to exhibit the problem.

Paul

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[David Banks]

Ok guys I filed a bug report (issue 499).

I found one temporary solution for now... set interactionModel to {} and only use the range selector to pan the graph ;)

[Hector Tellez]

Any updates on this? I couldn't find if this issue has been or not solved.