16e420021c
* chore(learn): audit d3 projects * chore: audit data vis * chore: audit json apis * Update curriculum/challenges/english/04-data-visualization/data-visualization-projects/visualize-data-with-a-scatterplot-graph.md Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * fix: apply suggestions Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * fix: no colour backticks Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> * Update curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-geolocation-data-to-find-a-users-gps-coordinates.md Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> * Apply suggestions from code review Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
2.8 KiB
id, title, challengeType, forumTopicId, dashedName
| id | title | challengeType | forumTopicId | dashedName |
|---|---|---|---|---|
| 587d7fa8367417b2b2512bcc | Display Shapes with SVG | 6 | 301485 | display-shapes-with-svg |
--description--
The last challenge created an svg element with a given width and height, which was visible because it had a background-color applied to it in the style tag. The code made space for the given width and height.
The next step is to create a shape to put in the svg area. There are a number of supported shapes in SVG, such as rectangles and circles. They are used to display data. For example, a rectangle (<rect>) SVG shape could create a bar in a bar chart.
When you place a shape into the svg area, you can specify where it goes with x and y coordinates. The origin point of (0, 0) is in the upper-left corner. Positive values for x push the shape to the right, and positive values for y push the shape down from the origin point.
To place a shape in the middle of the 500 (width) x 100 (height) svg from last challenge, the x coordinate would be 250 and the y coordinate would be 50.
An SVG rect has four attributes. There are the x and y coordinates for where it is placed in the svg area. It also has a height and width to specify the size.
--instructions--
Add a rect shape to the svg using append(), and give it a width attribute of 25 and height attribute of 100. Also, give the rect x and y attributes each set to 0.
--hints--
Your document should have 1 rect element.
assert($('rect').length == 1);
The rect element should have a width attribute set to 25.
assert($('rect').attr('width') == '25');
The rect element should have a height attribute set to 100.
assert($('rect').attr('height') == '100');
The rect element should have an x attribute set to 0.
assert($('rect').attr('x') == '0');
The rect element should have a y attribute set to 0.
assert($('rect').attr('y') == '0');
--seed--
--seed-contents--
<body>
<script>
const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
const w = 500;
const h = 100;
const svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h)
// Add your code below this line
// Add your code above this line
</script>
</body>
--solutions--
<body>
<script>
const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
const w = 500;
const h = 100;
const svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h)
.append("rect")
.attr("width", 25)
.attr("height", 100)
.attr("x", 0)
.attr("y", 0);
</script>
</body>