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62 lines
3.4 KiB
Markdown
62 lines
3.4 KiB
Markdown
---
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id: bd7188d8c242eddfaeb5bd13
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title: Visualize Data with a Heat Map
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challengeType: 3
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forumTopicId: 301466
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dashedName: visualize-data-with-a-heat-map
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---
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# --description--
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**Objective:** Build an app that is functionally similar to this: <a href="https://heat-map.freecodecamp.rocks" target="_blank" rel="noopener noreferrer nofollow">https://heat-map.freecodecamp.rocks</a>.
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Fulfill the below user stories and get all of the tests to pass. Use whichever libraries or APIs you need. Give it your own personal style.
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يُمكنك استخدام HTML و JavaScript و CSS إلى جانب مكتبة D3. يجري الاستعلام عن كُل عٌنصر (DOM elements) في أثناء كُل اختبار. في حال كُنت تستخدم مكتبة (frontend framework) مثل Vue، فإن نتائج الاختبار ربما تكون غير دقيقة بسبب أنَّ المحتوى ديناميكي. نتمنى أن نتوافق معهم في القريب العاجل، لكن هذه المكتبات غير مدعومة لمشاريع D3 حالياََ.
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**User Story #1:** My heat map should have a title with a corresponding `id="title"`.
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**User Story #2:** My heat map should have a description with a corresponding `id="description"`.
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**User Story #3:** My heat map should have an x-axis with a corresponding `id="x-axis"`.
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**User Story #4:** My heat map should have a y-axis with a corresponding `id="y-axis"`.
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**User Story #5:** My heat map should have `rect` elements with a `class="cell"` that represent the data.
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**User Story #6:** There should be at least 4 different fill colors used for the cells.
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**User Story #7:** Each cell will have the properties `data-month`, `data-year`, `data-temp` containing their corresponding `month`, `year`, and `temperature` values.
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**User Story #8:** The `data-month`, `data-year` of each cell should be within the range of the data.
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**User Story #9:** My heat map should have cells that align with the corresponding month on the y-axis.
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**User Story #10:** My heat map should have cells that align with the corresponding year on the x-axis.
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**User Story #11:** My heat map should have multiple tick labels on the y-axis with the full month name.
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**User Story #12:** My heat map should have multiple tick labels on the x-axis with the years between 1754 and 2015.
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**User Story #13:** My heat map should have a legend with a corresponding `id="legend"`.
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**User Story #14:** My legend should contain `rect` elements.
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**User Story #15:** The `rect` elements in the legend should use at least 4 different fill colors.
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**User Story #16:** I can mouse over an area and see a tooltip with a corresponding `id="tooltip"` which displays more information about the area.
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**User Story #17:** My tooltip should have a `data-year` property that corresponds to the `data-year` of the active area.
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Here is the dataset you will need to complete this project: `https://raw.githubusercontent.com/freeCodeCamp/ProjectReferenceData/master/global-temperature.json`
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You can build your project by <a href='https://codepen.io/pen?template=MJjpwO' target="_blank" rel="noopener noreferrer nofollow">using this CodePen template</a> and clicking `Save` to create your own pen. Or you can use this CDN link to run the tests in any environment you like: `https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js`
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Once you're done, submit the URL to your working project with all its tests passing.
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# --solutions--
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```js
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// solution required
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```
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